CVE-2021-21606
UNKNOWN
Published 2021-01-13T15:55:29
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No CVSS data available
Description
Jenkins 2.274 and earlier, LTS 2.263.1 and earlier improperly validates the format of a provided fingerprint ID when checking for its existence allowing an attacker to check for the existence of XML files with a short path.
Available Exploits
No exploits available for this CVE.
Related News
No news articles found for this CVE.
Affected Products
Affected Versions:
GitHub Security Advisories
Community-driven vulnerability intelligence from GitHub
✓ GitHub Reviewed
MODERATE
Arbitrary file existence check in file fingerprints in Jenkins
GHSA-f585-9fw3-rj2mAdvisory Details
Jenkins provides a feature for jobs to store and track fingerprints of files used during a build. Jenkins 2.274 and earlier, LTS 2.263.1 and earlier provides a REST API to check where a given fingerprint was used by which builds. This endpoint does not fully validate that the provided fingerprint ID is properly formatted before checking for the XML metadata for that fingerprint on the controller file system.
This allows attackers with Overall/Read permission to check for the existence of XML files on the controller file system where the relative path can be constructed as 32 characters.
Jenkins 2.275, LTS 2.263.2 validates that a fingerprint ID is properly formatted before checking for its existence.
Affected Packages
Maven
org.jenkins-ci.main:jenkins-core
ECOSYSTEM:
≥0
<2.263.2
Maven
org.jenkins-ci.main:jenkins-core
ECOSYSTEM:
≥2.264
<2.275
CVSS Scoring
CVSS Score
5.0
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: December 13, 2022
Published: 2021-01-13T15:55:29
Last Modified: 2024-08-03T18:16:23.623Z
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