CVE-2021-21688

Aliases:GHSA-m9hr-259f-2v23BIT-jenkins-2021-21688
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)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
0.35% LOW
0% 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

The agent-to-controller security check FilePath#reading(FileVisitor) in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not reject any operations, allowing users to have unrestricted read access using certain operations (creating archives, FilePath#copyRecursiveTo).

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • 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•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 0.35%• Percentile: 58%

Techniques & Countermeasures

  • CWE-862•Missing Authorization

    The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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)