CVE-2021-21690

Aliases:GHSA-97c3-w9cr-6qc2BIT-jenkins-2021-21690
Advisory lineage Upstream: 0 Downstream: 5
Modified
Published: 04 Nov 2021, 16:30
Last modified:03 Aug 2024, 18:23

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (nvd)
EPSS Score
0.5% LOW
1% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

04 Nov 2021, 16:30
Published
Vulnerability first disclosed
03 Aug 2024, 18:23
Last Modified
Vulnerability information updated

Description

Agent processes are able to completely bypass file path filtering by wrapping the file operation in an agent file path in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v3.1•CRITICAL•Score: 9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.50%• Percentile: 67%

Techniques & Countermeasures

  • CWE-22•Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

    The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Affected Systems

  • jenkins project•jenkins

    ≥ unspecified, ≤ 2.318 | ≥ unspecified, ≤ LTS 2.303.2

  • Unknown•Jenkins

    < 2.303.3 | < 2.319

  • org.jenkins-ci.main•jenkins-core

    < 2.303.3 | ≥ 2.304, < 2.319

References (6)