CVE-2021-21696GHSA-C5R9-RX53-Q3GFBIT-JENKINS-2021-21696
Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories wh
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2.303.3, 2.319
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories when using the FilePath APIs, allowing attackers in control of agent processes to replace the code of a trusted library with a modified variant. This results in unsandboxed code execution in the Jenkins controller process.
Timeline
- CVE published
- Record last updated
Affected versions
- Jenkins project Jenkins
through 2.318; through LTS 2.303.2
- org.jenkins-ci.main:jenkins-coreMaven
fixed in 2.303.3
- org.jenkins-ci.main:jenkins-coreMaven
From 2.304 · fixed in 2.319