Horizon3.ai Assesses The Impact Of The Jenkins Arbitrary File Leak Vulnerability

Naveen Sunkavally, chief architect at Horizon3.ai, has just published “CVE-2024-23897: Assessing the Impact of the Jenkins Arbitrary File Leak Vulnerability,” an analysis of the vulnerability for which Jenkins issued a security advisory on January 24, 2024 re CVE-2024-23897, affecting the Jenkins continuous integration/continuous development (CI/CD) software development tool. 

Naveen notes that the advisory set off alarm bells among the infosec community because the potential impact is huge: Jenkins is widely deployed, with tens of thousands of public-facing installs, and the Jenkins advisory was clear that this vulnerability could lead to remote code execution. Jenkins is a common target for attackers, and, as of this writing, there are four prior Jenkins-related vulnerabilities in CISA’s catalog of Known Exploited Vulnerabilities.

His analysis and advice, issued today for users of Jenkins is: “Don’t panic… unless you need to. This is a textbook example of a vulnerability whose true impact can only be accurately assessed within the context of your environment. The typical Jenkins install will not be exploitable by unauthenticated attackers. However, there are a few factors that could significantly increase the potential for damage, elevating this to a truly critical vulnerability.” 

His post discusses those factors and how to gain an accurate assessment of risk.

Links:

Horizon3.ai Red Team Blog  – CVE-2024-23897: Assessing the Impact of the Jenkins Arbitrary File Leak Vulnerability: https://www.horizon3.ai/cve-2024-23897-assessing-the-impact-of-the-jenkins-arbitrary-file-leak-vulnerability/

Jenkins Security Advisory 2024-01-24 – Arbitrary file read vulnerability through the CLI can lead to RCE – CVE-2024-23897: https://www.jenkins.io/security/advisory/2024-01-24/

NIST National Vulnerability Database – CVE-2024-23897 Detail: https://nvd.nist.gov/vuln/detail/CVE-2024-23897

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