Security News > 2024 > January > Exploits released for critical Jenkins RCE flaw, patch now

Exploits released for critical Jenkins RCE flaw, patch now
2024-01-28 15:17

Multiple proof-of-concept exploits for a critical Jenkins vulnerability allowing unauthenticated attackers to read arbitrary files have been made publicly available, with some researchers reporting attackers actively exploiting the flaws in attacks.

SonarSource researchers discovered two flaws in Jenkins that could enable attacks to access data in vulnerable servers and execute arbitrary CLI commands under certain conditions.

The first flaw, rated critical, is CVE-2024-23897, allowing unauthenticated attackers with 'overall/read' permission to read data from arbitrary files on the Jenkins server.

On January 24, 2024, Jenkins released fixes for the two flaws with versions 2.442 and LTS 2.426.3, and published an advisory that shares various attack scenarios and exploitation pathways, as well as fix descriptions and possible workarounds for those unable to apply the security updates.

With abundant information about the Jenkins flaws now available, many researchers reproduced some of the attack scenarios and created working PoC exploits published on GitHub.

VMware confirms critical vCenter flaw now exploited in attacks.


News URL

https://www.bleepingcomputer.com/news/security/exploits-released-for-critical-jenkins-rce-flaw-patch-now/

Related Vulnerability

DATE CVE VULNERABILITY TITLE RISK
2024-01-24 CVE-2024-23897 Path Traversal vulnerability in Jenkins
Jenkins 2.441 and earlier, LTS 2.426.2 and earlier does not disable a feature of its CLI command parser that replaces an '@' character followed by a file path in an argument with the file's contents, allowing unauthenticated attackers to read arbitrary files on the Jenkins controller file system.
network
low complexity
jenkins CWE-22
critical
9.8

Related vendor

VENDOR LAST 12M #/PRODUCTS LOW MEDIUM HIGH CRITICAL TOTAL VULNS
Jenkins 637 21 1029 434 72 1556