Enhancing Network Security: How IDS Systems Can Protect Against Cyber Attacks.

Intrusion Detection Systems (IDS) are an emerging solution used for protecting data and safeguard enterprises from a variety of cyberattacks. Modern IDS systems have serious privacy issues and trigger a large volume of noise, false positive alerts, and do not do enough to track suspicious activities in networks. The rise of malicious actors, lack of encryption, and sophisticated attack strategies is overwhelming the cybersecurity landscape which means organizations need to upgrade threat detection methods and techniques. Intrusion detection systems have undergone many developments and been around for decades. They serve as a foundation to network security, help monitor network traffic, and can solve security problems that arise due to unaddressed gaps and vulnerabilities. This paper discusses how to enhance network security using IDS, common challenges faced, and what organizations can do to upgrade their IDS.

IDS to Fight Cyber Attacks

Cyberattacks can disrupt the security of today’s networks and jeopardize the safety, integrity, and reputation of organizations. There is a heightened need for enterprises to safeguard their network security and implement tools and techniques to protect their assets. Intrusion Detection Systems (IDS) are used for surveillance purposes and can secure networks by monitoring traffic for illicit traffic and malicious behaviors.

Network-based monitoring analyzes specific segments, devices, and application activities to detect and identify suspicious behaviors. IDS solutions are critical for organizations as they scan infrastructure systems for vulnerabilities, malware, and policy violations. Intrusion detection systems are different from intrusion prevention systems in terms of capabilities, where the former aims to detect and report incidents, with intrusion prevention systems focused on stopping incidents or causing security breaches.

There are many different types of IDS solutions for enterprises and most of them are customized according to business requirements. Automation in intrusion detection can perform audit trails and identify vulnerability exploits against target applications. Enterprises should upgrade their IDS to proactively detect and respond to emerging network security threats.

This blog will discuss challenges associated with modern IDS and what enterprises can do to upgrade their intrusion detection systems.

Challenges Associated with Modern IDS

Enterprises are continually pursuing faster, more accurate, scalable, and reliable detection frameworks for the latest IDS solutions. Modern IDS solutions present various challenges like unbalanced datasets, low detection rates, poor response times, and more false positives. They also suffer from usability issues and the learning curve is steep for enterprises that are not used to implementing these solutions into their business operations. Security practitioners may also face difficulties when configuring and installing IDS for the first time.

IDS systems generate a high volume of alerts which can be a significant burden to internal teams. Organizations simply don’t have the time or resources to inspect every alert. This means suspicious activity may sometimes slip through the radar.

Common challenges associated with modern IDS systems are:

• Fragmentation – Attackers split payloads by splitting them into multiple packets and staying under the detection radar. Packets sent from one fragment can overwrite data from previous packets, and there are cases where packets are sent in the incorrect order to confuse the IDS system (Jelen, 2023). The IDS solution times out when there are lapses between transmitting data packets or unexpected disruptions.
• Low-Bandwidth Threats – When an attack is spread out across multiple sources and occurs over a long period, it can generate benign traffic and noise, which bear similarities to that of online scanners. False positives and false negatives occur as a result, and there are instances of alert fatigue happening as well, which opens the door to more dangerous threats(Jelen, 2023).
• Obscurity – It manipulates IDS protocols at different ports and evades intrusion detection by confusing the target host (Jelen, 2023).

Top Tips to Upgrade IDS

Upgrading an organization’s IDS begins by taking into account many considerations and making the necessary arrangements. It’s important to factor in an organization’s risk tolerance level when investing in new security measures and ensure minimal exposure to emerging risks. When legacy IDS moves to the Cloud, there is a massive increase in network traffic and network security monitoring tools are expected.

For enterprises that are switching to public and private cloud providers, legacy IDS may not support the latest deployment models. A security information and event management (SIEM) system can help organizations gather information from multiple sources, including intrusion detection solutions, firewall logs, and web applications. Analysis of firewall data can detect unwanted configuration changes, prevent unauthorized access to data, and ensure adherence to the latest compliance standards like DSS, SOX, GLBA, and HIPAA.

In the last few years, Machine Learning and AI have greatly expanded the scope of intrusion detection and prevention, and experts are evaluating the latest IDS techniques to assess the state of organizational security.

AI-Based Detection and Next-Gen Firewalls

AI-based detection is popular for its pattern-recognition techniques and intelligent threat analysis. It can crosscheck intrusion signatures with a signature database that contains older signatures and inspects it to find sequences, commands, and actions in networks which may identify as malware. (Khraisat, 2019)

Increasing the precision of Intrusion Detection Solutions (IDS) is important as threat patterns become increasingly complex. The most common type of IDS deployed to maximize security is the NIDS which is based on ruleset and protocol violation techniques. There are new approaches to identifying network attack events and machine learning techniques can assist with zero-day attack prevention and false-positive reduction in large-scale enterprises, thus preventing attacks in the early stages. (Regino Criado, 2022)

Next-generation firewalls (NGFW) can deep filter threats and enable micro segmentation in networks for effective intrusion prevention. They usually come as standalone products and most next-gen firewalls are integrated with virtual machines and cloud services. NGFW solutions can feature built-in IDS and IPS and have the ability to receive real-time threat intelligence from external sources. Enterprises can add new security features to them as needed, apply security policies on an application-level, and enjoy quick integrations with existing infrastructure assets. An alternative to using NGFW solutions is using Unified Threat Management (UTM) platforms which serve as a universal gateway and combine multiple security solutions.

Best Practices for Intrusion Detection

A good practice is to use multiple layers of intrusion detection technologies to prevent malicious actors from hijacking systems. There are 4 main intrusion detection approaches employed for this: wireless, network behaviour analytics, host-based detection, and network-based attack detection. Hybrid and ensemble intrusion detection models can provide reduced false positive rates and higher accuracy in anomalous threat detection. Machine learning algorithms and feature selection are popular computing methodologies used to improve the performance of intrusion detection systems. Tree-based algorithms can be used as a base classifier, and bagging and boosting are popular ensemble techniques for evaluating various datasets. They also offer excellent classification accuracy and performance when working with selected feature subsets.(Ngoc Tu Pham, 2018)

IDS research recommends the Bayesian and infinite bounded mixture model for the feature classification of members. It is also designed for IoT environment security and can help classify network activities into abnormal and normal classes. A Support Vector Machine (SVM)is a supervised machine learning technique used for making threat predictions and can be used for non-linear feature mapping (Khraisat, 2019). It’s very effective in high-dimensional spaces and can cluster data before the classification process begins.

Virtual patching should be used to protect and remediate vulnerabilities in critical systems. Most organizations adopt a hybrid cloud model for protecting their data across on-premises and cloud environments. AI-based IDS solutions integrate with multiple security products and offer features such as deep packet inspection, URL and on-box SSL inspection, and advanced malware analysis. Having customizable post-scan actions and policies that can be automated can efficiently help protect organizations from various cyber threats as well. (Micro, 2022)

Integrating IDS and IPS Capabilities Under SIEM

Intrusion Prevention Systems (IPS) are essential for improving network visibility and can help identify potential risks. IPS can detect and block unknown threats in real-time and augment the capabilities of modern IDS solutions. Other advantages include correcting cyclic redundancy check errors, eliminating instances of unwanted network layers, and resolving TCP (Transmission Control Protocol) sequencing issues. SIEM connectivity to IPS and IDS can make significant improvements to enterprise security and enable advanced threat protection. SIEM systems can take data from IPS and IDS to give a comprehensive analysis of an enterprise’s security posture and make accurate vulnerability assessments.

Many businesses are relying on managed security services providers (MSSP) to better manage their SIEM systems and ensure regular updates. Detecting and reacting to threats aren’t enough and intrusions start with simple vulnerabilities like outdated software, open ports, and unrestricted limits to login attempts. Persistent malware intrusions are subtle and don’t trigger alarms and careless practices at work like overusing privileged accounts, visiting unsafe websites, and remaining logged in for long periods of time, can set up organizations for new data breaches. SIEM solutions combined with IPS and IDS can detect such habits, tighten security, and prevented unusual account usage patterns, thus helping enterprises prevent cyberattacks and improve security effectively. (Miller, 2020)

Monitoring north-south traffic in cloud-based infrastructures is increasingly important as applications are deployed over multiple data centers and cloud platforms. Enterprises should use VPN to control the flow of north-south traffic and implement the Secure Socket Layer (SSL) protocol to encrypt data transmitted between clients and servers and secure connections. East-West traffic security monitoring inspects activities that occur laterally within network perimeters and mitigates risk for distributed operations. The best practices for efficient east-west IDS security are – applying network segmentation and performing granular inspection of East-west traffic using policy-based controls. Advanced malware analysis and sandboxing will also prevent zero-day attacks and provide accurate threat detection in the process.

Conclusion

IDS capabilities in attack detection depend on simplifying large datasets and selecting the most influential features to improve its model’s accuracy and performance. Different IDS algorithms can dramatically improve the performance of intrusion detection systems, and it’s clear that ML algorithms like DT, KNN, ANN, BN, and SVM all offer unique characteristics and features that enable IDS optimization and enhancement. When IDS is combined with machine learning and AI, its accuracy in detecting R2L and DoS network-based threats dramatically increases. The speed of the training and testing process is another significant factor in improving IDS models, along with the appropriate selection of parameters to improve detection accuracy. Enterprises can also adopt the approach of hybrid data optimization based on ML algorithms and use data sampling techniques to isolate outliers. With the proper modeling strategy, IDS performance can be upgraded, uncover hidden threats in real-time, and detect unknown types of anomalous behaviors in networks as well.

Source: eccouncil.org

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Man-in-the-Middle (MitM) Attack: Definition, Types, & Prevention Methods

A man-in-the-middle attack is a cyberattack in which the attacker can secretly intercept messages between two or more parties who believe they are communicating with each other. Attackers can then use their position as the “man in the middle” to read this confidential information, even maliciously edit it, or insert their own messages. This can lead to a devastating data breach or the spread of malware throughout an organization’s IT environment.

The MITM attack is a common, yet often overlooked, tactic malicious cyber actors use. In 2019, for example, more than 500 million users of the UC Browser Android mobile app were exposed to an MITM attack because the app downloaded executable code from a third-party server (Gatlan, 2019).

So what is a man-in-the-middle attack, and how can you get started with man-in-the-middle prevention? We’ll answer these questions and more below.

What is a Man-in-the-Middle (MitM) Attack?

MITM attacks are a kind of digital eavesdropping, letting attackers steal sensitive data or even force themselves into the conversation in disguise. They are dangerous precisely because they are intended to be covert: the attacker slips away without the communicating parties being any wiser.

The goal of man-in-the-middle attacks is for the attacker to somehow exploit this privileged eavesdropping stance. Some attackers listen in to conversations to steal login credentials, financial data, or other sensitive personal information. Other attackers use the MITM approach as part of a larger cyberattack, using their position to insert malware to gain access to an IT system or network.

How Do Man-in-the-Middle Attacks Work?

Man-in-the-middle attacks require the existence of a security flaw or vulnerability in an IT environment that can be hijacked and exploited by the attacker. The steps of an MITM attack are as follows:

1. Gaining access: The attacker gains access to a private communications channel in some form. The methods of gaining access may include intercepting network traffic, hacking into an unsecured Wi-Fi hotspot, or exploiting vulnerabilities in web applications.

2. Listening in: Once MITM attackers have access, they begin the attack by exfiltrating the private messages and data that is sent back and forth within the channel. This may be done simply by eavesdropping on communications or establishing a fake website or server that intercepts users’ messages.

3. Exploiting: Sophisticated MITM attacks may also insert their messages into the conversation, posing as legitimate entities. For example, they might change the contents of an email or trick users into revealing their financial details.

4. Further attacks: The attacker may use the knowledge gained during an MITM attack to further assault the target. Employees’ login credentials, for example, can be used to enter an IT environment and cause additional damage or disruption.

Types of Man-in-the-Middle Attacks

There are many different types of man-in-the-middle attacks, making it essential for businesses to recognize all the warning signs. Security researchers have discovered potential MITM attacks targeting Internet routers, real-time locating system (RLTS) technology, and even smartwatches for children.

Below are just a few ways for cybercriminals to commit MITM attacks:

• Wi-Fi eavesdropping: Attackers may hack into unsecured Wi-Fi networks or set up a malicious Wi-Fi hotspot to view users’ communications. For example, an attacker may establish a Wi-Fi hotspot with the name of a nearby business, tricking users into connecting.
• IP spoofing: Attackers might change the Internet Protocol (IP) address of a website, server, or device. This causes users to believe that they are interacting with a legitimate entity when they are, in fact, communicating with a malicious attacker.
• DNS spoofing: Attackers can also spoof or “poison” a Domain Name System (DNS) cache, causing legitimate user traffic to be redirected to fake websites. This requires attackers to exploit vulnerabilities in DNS servers or trick users into downloading malware that changes their DNS settings.
• ARP cache poisoning: Attackers can manipulate the Address Resolution Protocol (ARP) cache for users on the same local network. The ARP cache can be “poisoned” with fake MAC address data of other devices on the network, letting the attacker impersonate legitimate entities and eavesdrop on communications.
• Session hijacking: Attackers can exploit a legitimate user’s current website session or browser cookies, taking over their identity. This allows them to steal users’ confidential data or hack into their financial accounts.

Man-in-the-Middle Attack Examples

Some real-life MitM attack examples that posed serious repercussions are highlighted below:

The Lenovo Superfish Adware MitM Attack (HTTPS Spoofing): One of the famous man-in-the-middle attack examples is the Lenovo adware attack, where computers from this brand were shipped with pre-installed Superfish Visual Search adware, making users the potential targets for MitM attacks (CISA, 2016). The software installed a self-signed root certificate on the user’s device, allowing the software to intercept a user’s encrypted web traffic and inject its own ads.

The DigiNotar MitM Attack (SSL Hijacking): The disastrous effects of the DigiNotar breach incident in 2011 finally prompted the company to declare bankruptcy after failing to withstand the hit. An issuer of digital certificates, DigiNotar, a Dutch company, faced a breach in July where the intruder tricked the company into issuing 500 fake digital certificates for top companies like Google, Mozilla, and Skype. The hacker claimed to have compromised four additional certificate authorities in addition to DigiNotar. He described himself as a 21-year-old Iranian student (Zetter, 2011).

How Can You Detect Man-in-the-Middle Attacks?

Because they are intended to be hidden by design, detecting man-in-the-middle attacks can be challenging. The ways to detect that you’ve fallen victim to an MITM attack include:

• Looking for unexpected communication: If you notice strange or unexpected things about the messages you receive (e.g., their content or timing), this could indicate that you are communicating with an MITM attacker.
• Scanning network traffic: Network monitoring and packet analysis tools such as tcpdump and Wireshark can help search for anomalies in the traffic in your IT environment.
• Verifying SSL/TLS certificates: Checking SSL certificates and other authentication protocols can verify that users communicate with the correct entity.
• Installing antimalware software: Antimalware and antivirus software can help detect the presence of unauthorized applications and code that has been injected by an MITM attacker.

Man-in-the-Middle Attack Prevention Best Practices

While attackers have no shortage of techniques in their MITM toolbox, their would-be targets aren’t totally helpless. Below are some best practices for man-in-the-middle prevention for individuals, organizations, and website operators:

• Using VPNs and encryption: Virtual private networks (VPNs) are encrypted channels that allow users to securely connect to the Internet and exchange sensitive data. In general, using encryption to protect information both in transit and at rest is an excellent practice to thwart MITM attacks.
• Avoiding public Wi-Fi hotspots: Malicious Wi-Fi hotspots are a favorite tactic of MITM attackers. Users should only connect to trusted Wi-Fi networks with up-to-date encryption protocols such as WPA3.
• Using secure connections: Website visitors should verify that they are using an HTTPS secure connection (and not merely HTTP). Most browsers have a visual indication of an HTTPS connection with a padlock icon in the address bar.
• Enforcing strong passwords and multi-factor authentication: Many MITM attacks occur when the attacker can breach an IT system’s defenses and impersonate a legitimate user. Requiring users to have strong passwords and use multi-factor authentication (MFA) to verify their identities makes it much harder for MITM attackers to take this approach.

Source: eccouncil.org

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What is Privilege Escalation? Attacks, Understanding its Types & Mitigating Them

What is Privilege Escalation?

Privilege escalation is a cyberattack technique where an attacker gains unauthorized access to higher privileges by leveraging security flaws, weaknesses, and vulnerabilities in an organization’s system. It is the attempt to elevate access permissions by exploiting bugs, system flaws, human behaviors, configuration oversights, or weak access controls. In most cases, the first penetration attack attempt is not enough to gain the required level of access to data. Attackers then resort to privilege escalations to gain deeper access to networks, assets, and sensitive information.

Privilege escalation attacks are performed to jeopardize business operations by exfiltrating data and creating backdoors. The goal of privilege escalations is to gain complete control over the system or network, with a malicious intent of security breaches, data theft, etc. Threat actors performing these attacks can be external hackers or insiders who start by carrying out a social engineering attack like phishing to gain access to computer networks and systems through credential theft.

As privilege escalation attacks can impact business reputation and continuity, strategic measures should be implemented for prevention, early detection, and mitigation.

Main Types of Privilege Escalations

Privilege escalation can be broadly classified into vertical privilege escalation and Horizontal Privilege Escalation.

Horizontal privilege escalation or account takeover is gaining access to the rights of lower-level accounts with similar privileges, mainly performed to increase the attacker’s sphere of access.

Vertical privilege escalation, or privilege elevation attack, is hacking into a system to gain elevated privilege access beyond what the attacker already has.

Vertical vs. Horizontal Privilege Escalation

Often confused, vertical and horizontal privilege escalations refer to different methods of obtaining higher privileges within a system or a network. Horizontal privilege escalation means obtaining access to the same level of privileges as a user. In contrast, vertical privilege escalation refers to obtaining a higher level of privileges than the user.

In case of a horizontal privilege escalation, a low-level employee with access to sensitive data may use that access to gain the same privileges as a higher-level employee, such as a manager. This enables the attacker to perform actions with the same level of authority as the compromised employee.

On the other hand, vertical privilege escalation refers to the process of gaining higher privileges than the user currently has. For example, a low-level employee may exploit a vulnerability in the system to gain administrative privileges, thus obtaining the ability to perform actions with a much higher level of authority.

Common Types of Privilege Escalation Techniques or Methods

There are various types of privilege escalation techniques that attackers can use to compromise a system. Some of them are discussed below.

1. Social engineering- In this technique, an attacker tricks a user into giving away their credentials or performing actions that grant the attacker elevated privileges. This can include phishing attacks, where an attacker sends an email posing as a trusted entity to trick the recipient into giving away their credentials, thereby giving the attacker access to the system.

2. Pass-the-Hash/Rainbow table attacks- Another technique is the pass-the-hash (PtH) attack, which aims at impersonating a user by using a stolen password hash to create a new session on the same network. To defend against this attack, modern systems must employ robust password management solutions to keep the hash unique between two sessions.

3. Vulnerabilities and exploits- Exploiting vulnerabilities in software and operating systems is another popular method of privilege escalation. Here, attackers exploit unpatched software vulnerabilities, buffer overflow issues, or other backdoors to gain privilege escalation.

4. Misconfigurations- In this attack, the attacker takes advantage of misconfigured systems to escalate their privileges. This can include weak passwords, unsecured network services, open ports, authentic failures, and other misconfigured systems.

5. Kernal exploits- In this technique, the attacker exploits zero-day vulnerabilities in the operating system kernel to escalate their privileges. This poses a serious threat as the kernel gets complete control over the system and can bypass security measures.

Best Practices to Prevent Privilege Escalation Attacks

Privilege escalation attacks can have severe consequences, including theft of sensitive information, disruption of operations, and reputational damage. By implementing strong passwords, restricting access, regularly updating systems, monitoring activity, and having a clear response plan, organizations can reduce their risk of falling victim to privilege escalation attacks. Below are some best practices that must be adopted to prevent and mitigate such attacks:

◉ Principle of least privilege- This measure is required to limit access to sensitive systems, applications, and data to only those who need it.

◉ Patch and update software regularly- Keeping all systems, software, and applications up to date with the latest security patches is essential in fixing known vulnerabilities.

◉ Vulnerability scanning- Attackers find it harder to enter the network when all the IT infrastructure’s components are routinely scanned for weaknesses. Before potential attackers can take advantage of them, vulnerability scans identify misconfigurations, undocumented system changes, unpatched or unsecured OSes and programs, and other problems.

◉ Implement strong passwords- Encourage users to use strong and unique passwords that are more challenging to guess or crack.

◉ Security awareness training- Conducting security awareness training is essential to prevent people in organizations from unintentionally assisting a privilege escalation attack by opening malicious links and attachments. It is also essential to emphasize the hazards and perils of sharing accounts and passwords.

◉ Incident response plan- It is imperative to have a clear incident response plan that outlines the steps to swiftly respond to detected incidents and prevent further exploitation. 

Examples of Privilege Escalation Attacks

Some common examples of privilege escalation attacks are discussed below.

1. Windows Sticky keys– The ‘sticky key’ attack is the most common and fairly easy way of performing a privilege escalation attack. It does not require high technical skill sets. Attackers must have physical access to the system and should be able to boot it from a repair disk. By pressing the Shift key five times, an attacker can gain access to the Command Prompt with administrator privileges, allowing them to execute malicious code.

2. Windows Sysinternals– The Windows Sysinternals tool suite is another common method to conduct a privilege escalation attack. In this case, an attacker first performs a ‘sticky key’ attack to gain a backdoor into the system and then executes “psexec.exe -s cmd” to gain administrator privileges.

3. Process Injection– This privilege escalation attack targets weak processes. This process involves injecting malicious codes into running processes to elevate the privileges of that process.

4. Linux Password User Enumeration– This is another prevalent privilege escalation method where the attacker can use tools to enumerate valid usernames on a target system. Attackers first identify target accounts on a Linux system to carry out this attack by gaining access to the system’s shell. This is mostly performed by exploiting misconfigured FTP servers.

5. Android Metasploit– Android Metasploit refers to using the Metasploit framework to exploit vulnerabilities in Android devices. The Metasploit framework is a popular hacking tool used by attackers that contains a library of known exploits. Attackers can leverage these exploits to perform privilege escalation attacks against rooted android devices.

 

Tools to Protect Your Systems from Privilege Escalation

The use of UEBA, password security tools, and vulnerability scanners can prevent privilege escalation attacks to a large extent. By monitoring user behavior, securing passwords, and identifying vulnerabilities, organizations can reduce their risk of being compromised by a privilege escalation attack.

1. UEBA (User and Entity Behavior Analytics)– UEBA is a security tool that uses machine learning to analyze user behavior and detect anomalous activity. This tool can identify changes in access patterns, attempts to access sensitive information, or escalate privileges. The Exabeam Security Management Platform and the Cynet 360 Platform, powered by UEBA, analyze abnormal account and user behaviors and provide comprehensive solutions to offer organizations real-time visibility into the security landscape.

2. Password security tools– One of the most common privileges escalations methods is cracking or guessing passwords. Password Auditor and Password Manager Pro are popular password security tools that offer a comprehensive password management solution and help individuals and businesses save and store their passwords securely. They also make the task of remembering complex passwords easy and encourage the use of unique and strong passwords for different accounts.

3. Vulnerability scanners– Vulnerability scanners are automated tools that scan a system, network, or application for vulnerabilities and misconfigurations that could be exploited for privilege escalations. Using vulnerability scanners will help organizations identify weaknesses, find coding bugs and get remediation guidance to mitigate security flaws before they are exploited. Invicti and Acunetix are two of the popular vulnerability scanners that can be used to detect security vulnerabilities.

4. Privileged Access Management (PAM) software solutions- PAM software solutions mitigate privileged access risks. PAM solutions protect organizations against privilege escalation attacks by identifying, monitoring, and detecting unauthorized access to sensitive information. JumpCloud, Ping Identity, and Foxpass are popular PAM solutions.

Privilege escalations can be a major security concern as they allow attackers to control the system and access sensitive information. While the use of these tools helps in the early detection and mitigation of privilege escalation attacks, it is important to note that these tools should be used as a part of a comprehensive security strategy and not relied upon as a sole solution.

Source: eccouncil.org

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MITRE ATT&CK: Meaning, Uses, Benefits and Mitre Attack Framework

MITRE ATT&CK (Adversarial Tactics, Techniques, and Common Knowledge) is a knowledge base used by cybersecurity experts, but do you really know what it is and why it matters? Read on to learn everything you need to know about this important security tool.

What is the MITRE ATTACK Framework?

While “MITRE ATTACK” refers to the knowledge base, “MITRE ATTACK” refers to its framework. The MITRE ATTACK framework is a “globally-accessible knowledge base of adversary tactics and techniques based on real-world observations” (MITRE) used for threat modeling language. The objective of ATTACK is to provide a common language for describing attacker behavior and to serve as a foundation for developing specific threat models and methodologies.

The framework is designed for cybersecurity practitioners at all organizational levels, from analysts to executives. Practitioners can use it to inform decisions about detection, prevention, and response strategies. Additionally, the ATTACK framework can be used to benchmark an organization’s security posture against specific adversaries, measure the effectiveness of security controls, and assess gaps in defenses (VMWare, 2022).

The MITRE ATTACK framework consists of three layers (Trellix):

◉ Tactics: the actions used by an adversary to accomplish their objectives

◉ Techniques: the specific methods or tools employed by an adversary to execute a tactic

◉ Procedures: the detailed steps taken by an adversary to carry out a technique

The framework is organized by tactics, which are grouped into categories based on their purpose. Each category contains techniques attackers can use to achieve the associated tactic. For each technique, there is a description of the procedure that an adversary may use to carry it out.

Is MITRE a Threat Model?

ATTACK is the knowledge base used for MITRE’s threat modeling language. In general, threat modeling identifies threats, vulnerabilities, and risks so that users can better understand and protect their systems. For example, engineers will consider fire hazards, earthquake risks, and flooding potential when designing a new building to make the structure as safe as possible. In the same way, analysts use threat modeling to identify potential weaknesses and vulnerabilities when developing a new cybersecurity system.

What Technologies Does ATTACK Apply To?

The ATTACK framework applies to various technologies, including but not limited to:

◉ Operating systems: Windows, Linux, macOS

◉ Mobile devices: Android, iOS

◉ Cloud providers: Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP)

◉ Virtualization platforms: VMware, Xen

◉ Container platforms: Docker, Kubernetes

◉ Industrial control systems (ICS): Siemens Simatic WinCC, GE Proficy iFix

Each technology has its own specific MITRE ATTACK techniques that apply to that platform. For example, Windows has techniques such as Process Injection and Privilege Escalation that are specific to that operating system. Similarly, Code Injection and App Whitelisting Bypass techniques are specific to the Android platform. The MITRE ATTACK framework is constantly updated with new techniques as attackers find new ways to exploit systems. Therefore, as new technologies emerge, the list of MITRE ATTACK applicable technologies will continue to grow.

Is MITRE ATT&CK Open Source?

ATTACK is not itself open source, but the information contained within it is freely available to anyone. Anyone can use the ATTACK knowledge base to help improve their security posture (CyberArk, 2021). 

There are many ways to use MITRE ATTACK. One popular way is to create what are called “attack simulations.” In an attack simulation, defenders try to stop an adversary using known techniques from ATTACK. These simulations help defenders practice their responses to real-world threats and learn about any gaps in their defenses.

How Many Tactics and Techniques are There in MITRE ATTACK?

The current version of MITRE ATTACK includes nine tactics and more than 100 techniques. But that doesn’t mean there are only nine ways to attack a system or that there are only 100 techniques in existence. There are many more than that. 

Some common techniques include malware infection, social engineering, password guessing, SQL injection, and denial-of-service attacks. As attackers find new ways to exploit systems and people, new techniques are being created.

How Does MITRE ATTACK Help Security Operations?

The goal of MITRE ATTACK is to provide a common language for discussing cybersecurity threats and to help security practitioners share information about TTPs. It is not meant to be a silver bullet or be used as a sole source of intelligence; practitioners should use it in conjunction with other tools and sources of information.

The MITRE ATT&CK Matrix: Tactics and Techniques

The objective of the ATTACK matrix is to better equip defenders to anticipate attacker behavior, identify gaps in their defenses, and implement mitigation strategies. The matrix and MITRE ATT&CK techniques have been widely adopted within the cybersecurity community and are used by practitioners across various industries. 

The attack MITRE matrix consists of tactics grouped into three categories: initial access, execution, and persistence. Each tactic represents a high-level action that an attacker may take to gain access to a system or maintain access to a system. For each tactic, one or more associated MITRE ATT&CK techniques describe how an attacker may execute that tactic.

What Are Some Use Cases of the MITRE ATTACK Matrix?

One common use case for the matrix is identifying which assets within an organization are most critical and need to be protected. This can help prioritize security spending and ensure that the most critical assets are adequately defended. Additionally, the matrix can be used to assess an organization’s current security posture and identify gaps (Walkowski, 2021). 

The MITRE ATTACK matrix can also be used to create “playbooks” for different types of attacks (Anderson, 2020). These playbooks can be used to help incident response teams rapidly identify and respond to attacks. Additionally, the playbooks can train staff on how to respond to various types of attacks.

Finally, threat intelligence analysts can use the matrix to track and analyze trends in MITRE attack techniques. This information can then be used to develop better defenses against future attacks.

Source: eccouncil.org

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How to Defend Against Common Web Application Attacks

With the rapid adoption of innovative technologies, cybersecurity has become more imperative than ever. From data breaches and ransomware to web application exploits, businesses today are constantly under attack.

Not only is the number of cyberattacks increasing, but the cost of each breach is also on the rise: According to a recent report (IBM, 2021), the rapid adoption of remote work during the COVID-19 pandemic has led to data breaches that cost an average of $1,000,000 more than data breaches not involving remote work. This is an alarming number, given that it is projected that over 40 million Americans will work remotely by the year 2026 (Tanzi, 2021).

Organizations need a comprehensive cybersecurity plan that includes defense against web application attacks. This article discusses some of the most common types of application security threats, how organizations can defend against them, and how to kickstart a career in application security by becoming an EC-Council Certified Application Security Engineer (C|ASE).

SQL Injection

One of the most common web application attacks is SQL injection (Towson University, n.d.): a type of attack that takes place when a web application does not validate values provided by a web form, cookie, input parameter, or another source before forwarding them to SQL queries on a database server. This allows attackers to insert malicious code by manipulating the input variables. Hackers can then use that code to extract data from a database or execute malicious commands on the server.

There are several ways to defend against SQL injection attacks, but one of the most reliable is to use a web application firewall (WAF) to detect and block malicious SQL code. Input validation can also be used to check for invalid or malformed input data, and parameterized queries can be used rather than dynamic queries to prevent attackers from executing commands on the database.

Cross-Site Scripting

Another common attack vector is cross-site scripting (XSS). XSS attacks occur when an attacker takes advantage of vulnerabilities in a web application to inject malicious code that enables them to access a target end user’s data. The code can be embedded in a script tag, iframe, or hyperlink. These attacks are typically launched using a client-side script and can occur whenever a web application uses input data from a user without validation or encryption.

There are several ways to protect against XSS attacks, including using a WAF to identify and block malicious code and input validation to identify unsafe or invalid input data. A content security policy can also be used to prevent attackers from injecting code into a webpage.

Cross-Site Request Forgery

Cross-site request forgery (CSRF) allows an attacker to execute unauthorized requests on behalf of another user (OWASP Foundation, 2021). This can be done by embedding the target’s session ID in a malicious payload.

There are several ways to protect against CSRF attacks. The first is to use a WAF to detect and block unauthorized requests. A second approach to defending against CSRF attacks is to use authentication tokens: unique identifiers used to verify the legitimacy of a request.

Insecure Direct Object References

Insecure direct object references (IDOR) are another common web application vulnerability (OWASP Foundation, 2020). IDOR-based attacks occur when a malicious hacker accesses sensitive data by manipulating the URLs used to reference objects in an application.

There are several ways to protect against IDOR and associated attacks. One technique is to use input validation to check that input values are safe and valid. Additionally, obfuscation techniques like URL rewriting and encoding can make it more difficult for attackers to exploit vulnerable URLs.

Opportunities for Career Growth in Application Security

As the world embraces new technologies faster than ever before and remote work increases, the threat of cybersecurity breaches looms large. To keep their data safe and ensure the security of their infrastructures and operations, organizations need cybersecurity professionals who understand the types of web application cyberattacks and how to defend against them.

While there are multiple threats to web applications, some sectors are more vulnerable to cyberattacks than others. One prominent industry is the blockchain and cryptocurrency space. For example, in 2017, a vulnerability was disclosed in the Parity Wallet, which stores cryptocurrencies like Bitcoin and Ethereum, that allowed attackers to steal over USD 30 million worth of digital currency (Zhao, 2017).

Source: eccouncil.org

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How to Prevent the Top 10 Most Common Cyberattacks

Cybersecurity is a pressing concern for businesses and individuals alike. With incidents like the Equifax breach making headlines, it’s clear that businesses and organizations must stay vigilant about online security.

Whether you want to beef up your cybersecurity skills or are responsible for safeguarding your organization’s networks, you need to know the most common cyberattacks and how to prevent them.

1. Phishing Attacks

Phishing attacks are one of the most common cyberattacks. According to Deloitte, approximately 91% of all cyberattacks start with a phishing email (Deloitte, 2020).

Phishing is a cyberattack that uses email or malicious websites to steal sensitive information, such as login credentials, credit card numbers, or account numbers. Attackers often pose as legitimate companies or individuals to trick victims into giving up this information.

There are many ways to prevent phishing attacks. Some of the most common methods include:

◉ Educating yourself and your employees about phishing attacks.

◉ Exercising caution with unsolicited emails, even if they appear to be from a trusted source; do not click on links or open attachments from unknown senders.

◉ Verifying the authenticity of websites before entering sensitive information.

◉ Using strong passwords and avoiding reused passwords for different accounts

◉ Implementing two-factor authentication where possible.

◉ Keeping your software and antivirus programs up to date.

2. Malware Attacks

In this 2022 Data Breach Investigations Report, Verizon states that 30% of data breach cases involve some type of malware (Verizon, 2022). Malware is a type of malicious code or software used to disrupt computer systems, steal data, or gain unauthorized access to a network. Common types of malware include viruses, worms, Trojan horses, ransomware, and spyware.

Preventing malware attacks requires a multilayered approach that includes:

◉ Technical controls, such as installing and maintaining antivirus and antimalware software.

◉ Nontechnical measures such as training employees on cybersecurity awareness and best practices as well as developing and enforcing strong security policies.

3. SQL Injection Attacks

SQL injection attacks occur when an attacker inserts malicious code into a web application to extract sensitive information from the database. The attacker can then use this information to gain access to the system or launch further attacks.

Some of the most common cyberattack strategies to prevent SQL injection include:

◉ Performing input validation to ensure all user input does not contain any malicious code.

◉ Configuring database permissions carefully to prevent unauthorized access to sensitive data.

◉ Using parameterized queries to avoid SQL injection vulnerabilities.

◉ Implementing security controls such as firewalls and intrusion detection systems.

4. Session Hijacking Attacks

Another common cyberattack, session hijacking, occurs when a hacker takes over a legitimate user’s session, usually by stealing the user’s cookies or session ID. Session hijacking attacks can be difficult to prevent, as they often exploit vulnerabilities at the network or application level.

Here are some steps you can take to reduce the risk of being hijacked:

5. DDoS Attacks

A distributed denial-of-service (DDoS) attack is a cyberattack in which multiple systems flood a target system with internet traffic, requests for information, or other data. The goal of a DDoS attack is to overload the target system so that it no longer functions properly or is unavailable to legitimate users.

Botnets often carry out DDoS attacks. These botnets are collections of infected computers controlled by an attacker (Brookes, 2022). The attacker will use them to send large amounts of traffic and data to the target system.

There are many ways to prevent DDoS attacks, including

6. Password Spraying Attacks

Password spraying is a type of cyberattack for which hackers use lists of commonly used passwords to try and gain access to multiple accounts. This type of attack often targets high-profile or unsecured accounts.

Some preventative measures to protect against password spraying are to maintain:

◉ Strong and unique passwords for all accounts.

◉ A password manager to keep track of passwords.

◉ Two-factor authentication whenever possible.

◉ Security mechanisms against phishing.

◉ Regular scans for vulnerabilities.

7. OnPath Attacks

In this common cyberattack activity, the attacker intercepts the communications of two victims, relaying messages between them and making them believe they are communicating directly. The attacker can eavesdrop on their conversation or modify the exchanged messages.

To reduce the risk of OnPath attacks:

◉ Always verify the identity of the person you are communicating with, even if you know them.

◉ Use encryption when possible and stay on guard against emails from unknown senders or emails that seem suspicious.

8. Ransomware

Ransomware is a type of malware that encrypts a victim’s files and demands a ransom payment to decrypt them. Ransomware attacks often involve phishing emails that contain malicious attachments, calendar invites, or links (CISCO Defense, 2022). Once opened, the attachment or link will download and install the ransomware onto the victim’s computer.

Preventative measures against ransomware include:

◉ Never opening attachments or clicking on links from unknown or untested sources.

◉ Keeping your antivirus and antimalware software up to date.

◉ Having a reliable backup solution in place so that you can recover your files in the event of an attack.

9. AI-Powered Attacks

Common cyberattacks carried out by AI-powered machines are among the most difficult to prevent. AI-powered machines can learn and evolve quickly, making it hard to keep up with their changing methods. 

Examples of AI-powered attacks include deepfake videos and phishing attacks that use machine learning to become more realistic and believable (Fortinet, 2022).

Here are a few things you can do that will help to prevent AI-powered attacks

10. Zero-Day Attacks 

A zero-day attack is a type of cyberattack that exploits previously unknown vulnerabilities in software or hardware (Hendler, 2022). These attacks take advantage of security vulnerabilities that have not yet been patched or made public.

Preventive measures against zero-day attacks include:

Source: eccouncil.org

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What Are the Most Important Types of Cyberthreats?

As our lives increasingly move online, the risk of cyberattacks increases. While we often hear about large-scale hacks, there are many different types of cyberthreats that can harm individuals, businesses, and even governments. Understanding these threats and how to protect yourself from them is essential to staying safe online. This blog post will explore the five most important types of cyberthreats, their sources, and how to mitigate them.

What Is a Cyberthreat?

A cyberthreat is a malicious attempt to disrupt, damage, or gain unauthorized access to electronic data. Cyberthreats can come from various sources, including individuals, groups, or nation-states. These threats can take many forms, such as viruses and malware, phishing scams, and denial-of-service (DoS) attacks.

Cybersecurity is a growing concern for businesses and individuals alike as the reliance on technology increases (Whittle, 2022). Cyberattacks can seriously impact an organization, causing financial loss, reputational damage, and even legal repercussions.

Types of Cyberthreats

Cyberthreats come in many forms, but some of the most important ones target critical infrastructures. These include attacks on energy grids, water systems, and transportation networks.

Below are some of the most common types of cyberthreats:

1. Viruses and Malware

Viruses and malware are malicious software that can cause damage to your computer or device. Viruses can spread quickly and easily, infecting other computers or devices on the same network. Malware is designed to damage or disable a system and can include viruses, Trojans, and spyware.

2. Phishing Scams

Phishing scams target victims by tricking them into revealing sensitive information. Typically, they pretend to be someone trustworthy, such as a banking representative or the victim’s relative. These attacks can be hard to spot, especially because they’re often carried out via email or text message.

3. Denial of Service Attacks

A denial-of-service (DoS) attack is an attempt to make a computer or network unavailable to its users. These attacks are carried out by flooding a system with requests or disrupting the connection between the user and the system.

4. SQL Injection Attacks

SQL injection attacks are a code injection in which an attacker inserts malicious SQL code into a database to gain access to sensitive data. These attacks can be challenging to detect and can result in the theft of sensitive information.

5. Wireless Network Attacks

Wireless network attacks are a type of security exploit in which an attacker gains access to a wireless network. These attacks can be used to eavesdrop on communications or to inject malicious code into devices connected to the network.

Sources of Cyberthreats

Cyberattacks can come from various sources, including individuals, groups, or nation-states (IBM, 2022). Cybercriminals frequently target businesses like financial institutions and hospitals, which have significant consequences for the company and its employees.

Below are some of the most common sources of cyberthreats:

1. Hackers

Hackers are individuals who use their skills to gain unauthorized access to computer systems or networks. Hackers can be motivated by various factors, including profit, political activism, or challenge.

2. Cybercriminals

Cybercriminals are individuals or groups who engage in criminal activity using computers and the internet. Cyberattackers often seek to profit from their activities and may engage in activities such as identity theft, fraud, or selling illegal goods and services.

3. Nation-States

Nation-states are a growing source of cyberthreats, as they increasingly use cyber weapons to gain an advantage over their rivals. These nation-states often have access to sophisticated tools and resources and can use them to carry out large-scale attacks.

4. Insiders

Insiders are individuals who have legitimate access to an organization’s systems and networks. Because they already have access to sensitive information and know how information is stored and organized, insiders are one of the most dangerous sources on this list.

5. Malicious Software

Malicious software, or malware, is a type of software designed to damage or disable a system. Malware can include viruses, Trojans, and spyware. Malware can be used to carry out a variety of attacks, including data theft and identity theft.

How to Protect Against Cyberthreats

Cyberthreats are constantly evolving, and there is no single silver bullet solution to cybersecurity. The most important thing you can do is to stay informed about the latest cyberthreats and to implement cybersecurity best practices within your organization. There are several steps you can take to prevent cyberthreats, including:

1. Keep Your Software Up to Date

One of the best ways to protect your computer from cyberthreats is to ensure that your software is up to date. Cybercriminals often exploit vulnerabilities in outdated software to gain access to systems (Palmer, 2022). By keeping your software updated, you’ll ensure that you have the latest security updates and system patches.

2. Use Strong Passwords

Another important step to protect your computer from cyberthreats is to use strong passwords. Cybercriminals often attempt to gain access to systems by guessing or brute-forcing weak passwords. By using strong passwords, you can make it more difficult for cybercriminals to access your system.

3. Enroll in a Cyberthreat Intelligence Program

A cyberthreat intelligence program can help you stay updated on the latest security threats and grow your knowledge of cyberthreats. This gained knowledge will help you better understand the potential risks you face.

4. Implement Threat Modeling

Cyberthreat modeling is identifying, analyzing, and quantifying risks posed by cyberthreats. It is a key component of any cyberthreat intelligence program and helps organizations to understand their digital risks better and take steps to mitigate them.

Threat modeling helps organizations to:

◉ Understand the cyberthreat landscape

◉ Identify potential vulnerabilities in their systems and networks

◉ Quantify the risks posed by those vulnerabilities

◉ Develop and implement cyberthreat mitigation strategies

5. Educate Your Employees

One of the best ways to prevent cyberthreats is to educate your employees on cybersecurity. Employees should be trained on identifying threats and what to do if they encounter one (Volyntseva, 2022). In other words, a well-educated workforce is a key defense against digital attacks.

For example, employees who understand the dangers of clicking on unknown links or opening attachments from unknown senders are much less likely to fall victim to a phishing attempt. By extension, they are also less likely to install malware that could accidentally bring down your entire network.

Everyone knows that cybersecurity is important, but generally, IT professionals only know to what extent that’s true. By educating all of your employees on cybersecurity best practices, you can help prevent serious online threats to your organization.

How the C|TIA Can Help Mitigate Cyberthreats

The Cyber Threat Intelligence Analyst (C|TIA) program from EC-Council is designed to help organizations mitigate cyberthreats. It provides cyberthreat intelligence, analysis, and mitigation training. The program also gives students access to a network of cyberthreat experts who can provide guidance and support. The C|TIA certification is designed to help analysts understand, analyze, and respond to cyberthreats. Organizations enrolling in the C|TIA program benefit from increased visibility into the latest threats.

Source: eccouncil.org

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Web Server and its Types of Attacks

Web servers are where websites are stored. They are computers that run an operating system and are connected to a database to run multiple applications. A web server’s primary responsibility is to show website content by storing, processing, and distributing web pages to users.

Web Server Attack:

Any attempt by a malicious actor to undermine the security of a Web-based application is referred to as a Web Application Attack or Web Server Attack. Web application attacks can either target the application itself in order to get access to sensitive data, or they can use the application as a staging area for attacks against the program’s users.

There are 5 types of major Web Attacks:

• Denial-of-Service (DoS) / Distributed Denial-of-service (DDoS)
• Web Defacement Attack
• SSH Brute Force Attack
• Cross-site scripting (XSS)
• Directory Traversal
• DNS Server Hijacking
• MITM Attack
• HTTP Response Splitting Attack

1. DENIAL-OF-SERVICE (DOS) / DISTRIBUTED DENIAL-OF-SERVICE (DDOS): Denial of Service is when an internet hacker causes the web to provide a response to a large number of requests. This causes the server to slow down or crash and users authorized to use the server will be denied service or access. Government services, credit card companies under large corporations are common victims of this type of attack

2. WEB DEFACEMENT ATTACK: In a Web Defacement Attack, the hacker gains access to the site and defaces it for a variety of reasons, including humiliation and discrediting the victim. The attackers hack into a web server and replace a website hosted with one of their own.

3. SSH BRUTE FORCE ATTACK: By brute-forcing SSH login credentials, an SSH Brute Force Attack is performed to attain access. This exploit can be used to send malicious files without being noticed. Unlike a lot of other tactics used by hackers, brute force attacks aren’t reliant on existing vulnerabilities

4. CROSS SITE SCRIPTING (XSS): This type of attack is more likely to target websites with scripting flaws. The injection of malicious code into web applications is known as Cross-Site Scripting. The script will give the hacker access to web app data such as sessions, cookies, and so on.

5. DIRECTORY TRAVERSAL: Directory Traversal Attack is usually effective on older servers with vulnerabilities and misconfiguration. The root directory is where web pages are stored, however, in this attack, the hacker is after directories outside of the root directory.

6. DNS SERVER HIJACKING: DNS Hijacking refers to any attack that tricks the end-user into thinking he or she is communicating with a legitimate domain name when in reality they are communicating with a domain name or IP address that the attacker has set up. DNS Redirection is another name for this.

7. MITM ATTACK: Man-in-the-Middle (MITM) attack allows the attacker to access sensitive information by blocking and modifying the connection between the end-user and web servers. In MITM attacks or smells, the hacker captures or corrects modified messages between the user and the web server by listening or intervening in the connection. This allows the attacker to steal sensitive user information such as online banking details, usernames, passwords, etc., which are transmitted online to the webserver. The attacker entices the victim to attach to an Internet server by pretending to be an agent.

8. HTTP RESPONSE SPLITTING ATTACK: HTTP Response Splitting is a protocol manipulation attack, similar to Parameter Tampering. Only programs that use HTTP to exchange data are vulnerable to this attack. Because the entry point is in the user viewable data, it works just as well with HTTPS. The attack can be carried out in a variety of ways.

How to Prevent Different  Attacks in Web Security?

• Keep your system up to date: Not updating the software regularly makes it weaker and leaves the system more vulnerable to attacks. Hackers take advantage of these flaws, and cybercriminals take advantage of them to get access to your network.
• Prevent connecting to the public WiFi network: An unsecured Wi-Fi connection can be used by hackers to spread malware. If you allow file-sharing across a network, a hacker can simply infect your computer with tainted software. The ability of a hacker to put himself between you and the connection point poses the greatest threat to free Wi-Fi security.
• Install Anti-virus, and update it regularly: Antivirus software is designed to identify, block, and respond to dangerous software, such as viruses, on your computer. Because computers are continuously threatened by new viruses, it is critical to keep antivirus software up to date. Anti-virus updates include the most recent files required to combat new threats and safeguard your machine. These signature files are provided on a daily basis, if not more frequently.
• Use IDS and firewall with updated signatures: NIDS are security threat detection and prevention systems that identify and prevent security threats from infiltrating secure networks. The use of NIDS has a negligible effect on network performance. NIDS are typically passive devices that listen to a network without interfering with the network’s normal operation.
• Backup your data: The fundamental purpose of a data backup is to keep a safe archive of your vital information, whether it’s classified documents for your business or priceless family photos so that you can quickly and effortlessly recover your device in the event of data loss. Backup copies allow data to be restored from a previous point in time, which can aid in the recovery of a business after an unanticipated occurrence. Protecting against primary data loss or corruption requires storing a copy of the data on a secondary medium.
• Install a Firewall: Firewalls defend your computer or network from outside cyber attackers by filtering out dangerous or superfluous network traffic. Firewalls can also prevent harmful malware from gaining internet access to a machine or network.

Source: geeksforgeeks.org

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What Are Sniffing Attacks, and How Can They Be Prevented?

The technique of capturing all data packets traveling through a network using a software application or hardware device is known as network sniffing (Mitchell, 2021). Ethical hackers can use sniffing to gain tremendous insights into the workings of a network and the behavior of its users, which can be used to improve an organization’s cybersecurity.

However, when employed by malicious hackers, sniffing can be used to launch devastating attacks against unsuspecting targets. This article will look at what sniffing is, how it can be used for harm, and how sniffing attacks can be prevented.

What Is Sniffing?

In its simplest form, sniffing is the act of intercepting and monitoring traffic on a network. This can be done using software that captures all data packets passing through a given network interface or by using hardware devices explicitly designed for this purpose.

What Are Sniffing Attacks?

A sniffing attack occurs when an attacker uses a packet sniffer to intercept and read sensitive data passing through a network (Biasco, 2021). Common targets for these attacks include unencrypted email messages, login credentials, and financial information.

In some cases, attackers may also use sniffing attack tools and packet sniffers to inject malicious code into otherwise innocuous data packets in an attempt to hijack a target’s computer or other devices.

How Do Hackers Intercept Packets?

There are several ways an attacker can capture packets passing through a network. One popular method is to set up a packet sniffer on a computer connected to the network in question. This computer acts as a proxy between the targeted devices and the rest of the world, allowing the attacker to capture all traffic passing through.

Another common technique is ARP poisoning, in which the attacker tricks devices on the network into thinking they are communicating with another device when they are not (Grimmick, 2021). This allows the attacker to intercept and read all traffic passing between the two “devices.”

Types of Sniffing Attacks

There are two primary sniffing attack types: passive and active.

Passive Sniffing

In a passive sniffing attack, the hacker monitors traffic passing through a network without interfering in any way. This type of attack can be beneficial for gathering information about targets on a network and the types of data (e.g., login credentials, email messages) they are transmitting. Because it does not involve any interference with the target systems, it is also less likely to raise suspicion than other types of attacks.

Active Sniffing

Active sniffing is a type of attack that involves sending crafted packets to one or more targets on a network to extract sensitive data. By using specially crafted packets, attackers can often bypass security measures that would otherwise protect data from being intercepted. Active sniffing can also involve injecting malicious code into target systems that allows attackers to take control of them or steal sensitive information.

Consequences of a Sniffing Attack

A successful sniffing attack can have several severe consequences for the targets. These can include:

◉ Loss of sensitive data, such as login credentials, financial information, and email messages

◉ Injection of malicious code into target systems, allowing attackers to control devices or access sensitive information

◉ Interruption of network traffic, which can cause communication problems and slow down network performance

◉ Exposure of confidential information, such as trade secrets and proprietary data

◉ Damage to the reputation of the organization whose network has been compromised

How Can Sniffing Attacks Be Prevented?

There are many ways to protect your network against sniffing attacks. Some key measures include:

◉ Using encryption to protect sensitive data from being intercepted

◉ Never sending sensitive information over an unencrypted connection

◉ Ensuring that all computers on a network are adequately protected with antivirus and firewall software

◉ Making sure the wireless network is secured using WPA or WEP encryption

◉ Regularly updating all software and devices with the latest security patches

◉ Staying aware of what type of traffic passes through the network and taking steps to protect sensitive information

◉ Using a VPN when connecting to public Wi-Fi networks

◉ Continuously monitoring the network for unusual activity

Source: eccouncil.org

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Cross-Site Request Forgery (CSRF) Attacks: Common Vulnerabilities and Prevention Methods

Cross-site request forgery (CSRF), also known as session riding, is a type of cyberattack in which authenticated users of a web application are forced to submit malicious, state-changing requests created by an attacker. CSRF attacks can:

◉ Alter the target’s records in an application

◉ Submit a transaction

◉ Purchase products using the target’s details

◉ Change passwords

◉ Change registered email addresses in a web application

◉ Send messages under the target’s name

◉ Transfer funds

In some instances, a CSRF attack can give hackers full access to a target’s accounts in the web application. If the targeted individual holds a privileged or controlling position within the web application, the attacker can exploit the vulnerability further to take control of the application and its data—meaning that CSRF defense is a key component of a business’s cybersecurity.

For businesses, CSRF defense represents an area of cybersecurity that deserves attention and investment due to the risk of attackers gaining access to company accounts and funds by submitting malicious requests that alter user accounts. For example, at the beginning of 2021, WordPress discovered that one of its plugins contained an embedded CSRF vulnerability that affected over 50,000 sites (Chamberland, 2021). This vulnerability allowed attackers to inject malicious JavaScript code into websites through the plugin, which attackers then used to force site users to open malicious links or attachments embedded in the affected sites.

How Do Cross-Site Request Forgery Attacks Work?

CSRF attacks often rely on social engineering methods to convince their targets to click on a malicious URL. Once a user clicks on the link, which contains an unauthorized request for a specific web application for which the user has authentication, the user’s browser sends that request to the target application (Synopsys, 2021).

Because the request also includes any relevant credentials, such as user session cookies, the application treats the new request as an authorized request sent by the user. Therefore, a CSRF attack allows cybercriminals to bypass a web application’s authentication process by attacking sites that fail to differentiate between valid and forged requests. Effective CSRF mitigation techniques focus on preventing attackers from bypassing authentication measures with this method.

For a CSRF attack to succeed, three essential conditions must be met (PortSwigger, 2021):

◉ There is a desirable action that the attacker wishes to perform, such as changing a password or transferring funds.

◉ Cookie-based session handling is in place to identify the user.

◉ There are no unpredictable request parameters that the attacker is incapable of determining or guessing, such as needing to know an existing password to create a new one.

If these three conditions are satisfied, an attacker can successfully construct a malicious request in a forged URL or link and convince a user to open the link while in an active session with the target web application. CSRF mitigation normally involves altering the second or third conditions on this list to prevent attackers from using cookie session data to bypass authentication processes or introduce unpredictable request parameters that attackers cannot guess.

Cross-Site Request Forgery Prevention, Mitigation, and Defense

There are three fundamental approaches that you can apply to your application’s CSRF mitigation strategy to prevent CSRF attacks and eliminate vulnerabilities (Demir, 2020):

◉ Using CSRF tokens in HTML forms for critical operation requests in applications

◉ Avoiding using the HTTP GET method for critical operations, such as create, update, and delete actions

◉ Using the “SameSite” attribute of the HTTP “Set-Cookie” response header

Cross-Site Request Forgery Tokens

CSRF tokens, or challenge tokens, are the most common method of CSRF mitigation. These tokens provide applications with a means of distinguishing between a request that was legitimately generated from a user’s interface and one that was not, as in the case of a CSRF attack.

CSRF tokens consist of large, random values unique to each user session and are inserted into HTML forms on both the user and server sides. Any requests generated by the user’s browser must contain the CSRF token. This allows the application server to verify a request as genuine, since a CSRF attack cannot access the token’s information in HTML (Synopsys, 2021).

SameSite Cookie Attribute

The SameSite attribute of the HTML Set-Cookie response header aims to prevent CSRF attacks by helping browsers decide when to send cookies with cross-site requests, as cookie data can allow CSRF attackers to bypass authentication processes (OWASP, 2021). Users can choose between “Lax” and “Strict” attribute values, which respectively allow or block session cookies when they arrive from external websites or when browsers encounter typical CSRF-prone request methods.

Source: eccouncil.org

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Defending Against Common Types of Web Application Attacks

Key Points

◉ Web applications can be vulnerable to attacks, which can allow cyber criminals to gain access to data and other sensitive information.

◉ Common web application attacks include cross-site scripting, SQL injections, path traversal, local file inclusion and DDoS.

◉ Automated vulnerability scanning, web application firewalls and proper testing can help protect against web application attacks.

Web application attacks are on the rise and studies show they are one of be the biggest causes of data breaches. Nearly half (43%) of 3,950 data breaches were traced to attacks against web applications, in one report, a number that doubled from 2019 to 2020. Because these attacks are becoming more common, it’s important for organizations to know what they’re up against, how to mitigate risks and how to secure websites against them.

What Is a Web Application?

A web application is software that runs on a web server and can be accessed by a user through a web browser with an active internet connection. This differs from local software apps, which run directly on a user’s device. Web applications are usually easy to install on the user’s end, and can often be customized to meet a business’s specifications. Web application examples include hosted email and messaging, content management systems and e-commerce services.

When a user accesses a web application, it triggers a request to the web server over the internet. The web application queries a content database, then generates content according to the client’s (user’s machine’s) request. The web application server sends the results back to the web server, which interprets and runs the scripts and displays the requested content on the user’s display.

Why Are Web Applications Vulnerable to Attacks?

Web applications can be exposed to attacks for a variety of reasons, including system flaws that stem from improper coding, misconfigured web servers, application design flaws or failure to validate forms. These weaknesses and vulnerabilities allow attackers to gain access to databases that can contain sensitive information. Because web applications must be available to customers at all times, they’re an easy target for attackers to exploit.

Cloud containers, which package application software with the elements needed to run it, have recently been identified as particularly vulnerable when they are not properly secured or they include insecure elements. The use of open source code and reliance on application programming interfaces (APIs) have also been exacerbating security issues.

Common Types of Web Application Attacks

Web applications can be attacked through a variety of vectors. Common types of web attacks include cross-site scripting, SQL injection, path traversal, local file inclusion and distributed denial of service (DDoS) attacks.

◉ Cross-site scripting (XSS): In an XSS attack, an attacker injects a piece of malicious code onto a trusted website or web-based app. Because the user’s browser thinks the script came from a trusted source, it will execute the script. XSS attacks can be used to steal data or perform other malicious acts on the visitor’s computer. While this method is considered unsophisticated, it’s common and can do significant harm.

◉ SQL injection (SQLI): SQLIs occur when an attacker meddles with the queries that a web application makes to its database. An SQLI can allow intruders to get sensitive data from the database. An attacker might modify or delete this data, or inject code that can change the web application's content or behavior.

◉ Path traversal: This attack, also known as directory traversal, allows the bad actor to manipulate paths to folders outside the web root folder, which can then be used to access web application files, directories and commands.

◉ Local file inclusion: This technique tricks the web application into exposing or running its files on the web server. These attacks occur when the web app treats a malicious attack as “trusted input.” An attacker may use path or directory traversal to learn about the files on the server, and then prompt the web app to run the local file. Local file inclusions can lead to information disclosure, XSS and remote code execution.

◉ DDoS attacks: These attacks happen when an attacker bombards a server with web requests. Attackers may use a network of compromised computers or bots to mount this attack, which can paralyze a server and prevent legitimate visitors from gaining access to your services.

◉ Cross-site request forgery (CSRF): CSRFs occur when an attacker tricks or forces an end user to execute unwanted actions on an application in which they are already authenticated. This might be executed through a link via email or chat and, if successful, can result in a transfer of funds or change in email address, for example.

◉ XML external entity (XXE): This attack relies on an improperly configured XML parser within an application’s code. This attack can lead to the disclosure of confidential data like passwords, denial of service, server-side request forgery and other system impacts.

Tips to Protect Against Website Attacks

Even though there are a variety of web application attacks, there are also processes, technologies and methods to protect against them. Different approaches to web application security address different vulnerabilities.

◉ Automated vulnerability scanning and security testing help organizations find, analyze and mitigate vulnerabilities and misconfigurations — hopefully before the actual attack occurs. This testing helps organizations identify security weaknesses that need to be resolved.

◉ Web application firewalls are hardware and software solutions that protect against application security threats by filtering, monitoring and blocking malicious traffic from traveling to the web application. These tools are continuously updated with new rules designed to catch the latest attack and exploitation techniques.

◉ Secure development testing is a practice in which security teams consider the threats and attacks that might have an impact on an application or product to help make it as secure as possible. Secure development testing can uncover the latest security risks and attack vectors early in the product lifecycle. It also helps in developing effective approaches to preventing website attacks and minimizing the consequences of breaches.

The Bottom Line

Web application attacks can be devastating events for organizations, which is why it is crucial to understand the types of attacks that can occur as well as how to best secure web applications. With proper development, testing and security processes and programs in place, businesses can mitigate risks and protect their web applications against it.

Source: mimecast.com

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