The 4 Trends in Security that You’ll Have to Look Out From this Year - Rahi
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The 4 Trends in Security that You’ll Have to Look Out From this Year

By Prathamesh Rahate

January 19, 2022 - 4 min

How the Log4j Flaw will Increase Cyber Threats in 2022?

The Log4j flaw, also known as CVE-2021-44228, is a critical vulnerability that was discovered in the widely used Apache Log4j library. This flaw allows attackers to execute arbitrary code remotely, potentially leading to complete compromise of affected systems. While the knowledge cutoff for my training data is in September 2021, I can provide some general insights into how such a flaw could potentially increase cyber threats in 2022.

Widespread Adoption: Log4j is a popular logging library utilized by numerous organizations and software applications. This widespread adoption increases the attack surface for potential exploitation. Attackers can target systems that rely on Log4j, potentially affecting a large number of entities simultaneously.

Chain of Vulnerabilities: The Log4j flaw can serve as an entry point for attackers to exploit additional vulnerabilities in targeted systems. Once an attacker gains control through Log4j, they can use it to move laterally, escalate privileges, or launch further attacks within the compromised environment.

Delayed Patching: The sheer scale of Log4j’s usage means that patching all affected systems can be a challenging task for organizations. Delayed or incomplete patching exposes systems to potential attacks for an extended period. Attackers may take advantage of this window of opportunity to exploit vulnerable systems.

Supply Chain Attacks: Log4j is often embedded in various software components and libraries used by different applications. This introduces the risk of supply chain attacks, where malicious actors target the software supply chain to infect multiple downstream applications. This could lead to the compromise of multiple organizations through a single point of entry.

Sophisticated Exploitation Techniques: As news of the Log4j flaw spreads, cybercriminals and state-sponsored threat actors are likely to develop more sophisticated techniques to exploit it. This could involve the creation of specialized malware, exploit kits, or botnets specifically designed to target Log4j vulnerabilities.

Exploitation in Legacy Systems: Legacy systems that may still be in use but are no longer actively maintained or updated could be particularly vulnerable to Log4j attacks. These systems may lack the necessary patches or security controls, making them an attractive target for attackers seeking to exploit the Log4j flaw.
To mitigate these increased cyber threats, organizations are advised to promptly apply available patches, closely monitor their systems for any signs of compromise, update their security controls, and maintain awareness of emerging threat intelligence related to Log4j. Additionally, fostering a culture of cybersecurity awareness and conducting regular security audits can help organizations identify and address vulnerabilities proactively.

How to Protect against Log4j Exploitation

According to the Apache Log4j Vulnerability Guidance form CISA, some of the immediate actions that your organization can take include:

• Discover all internet-facing assets that allow data inputs and use Log4j Java library anywhere in the stack.

• Discover all assets that use the Log4j library.

• Update or isolate affected assets. Assume compromise, identify common post-exploit sources and activity, and hunt for signs of malicious activity.

• Monitor for odd traffic patterns (e.g., JNDI LDAP/RMI outbound traffic, DMZ systems initiating outbound connections).

How Rahi Can Help

While version upgrades and patch fixes seem to be the only available solution, there’s no substitute for an iron-clad enterprise security system. Whether designing, deploying, or consulting on bolstering the existing security systems, the Rahi team can help fill in the gaps by working with your security team to chart the best-suited solution for your use case.

Rahi’s experts use our ELEVATE methodology to help customers develop comprehensive security strategies. From assessment through planning, implementation, and long-term management, we’re here to help you identify risks and vulnerabilities and ensure that your mission-critical systems and data are protected.

Interested in the topic? Read also:
3 Core Functions that Help Maximize Cybersecurity

Author

  • Prathamesh Rahate is a Network Engineer at Rahi. Since joining in 2019 he has been involved with delivering Professional Service projects. Starting his career as a Network Support (NOC) Engineer working on network environments like Data Centre, Campus Network & Office Networks, he has now transitioned into a Solutions Engineering role. He is part of the Pre-Sales Engineering team at Rahi. Prathamesh holds a Master’s degree from the San Jose State University majoring in Computer Networks. An avid sports fan, he enjoys Cricket, Soccer and Basketball.

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