CVE-2021-21602

Aliases:GHSA-vpjm-58cw-r8q5BIT-jenkins-2021-21602
Advisory lineage Upstream: 0 Downstream: 3
Modified
Published: 13 Jan 2021, 15:55
Last modified:03 Aug 2024, 18:16

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.5 MEDIUM
v3.1 (nvd)
EPSS Score
1.67% LOW
2% probability +0.28%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Jan 2021, 15:55
Published
Vulnerability first disclosed
03 Aug 2024, 18:16
Last Modified
Vulnerability information updated

Description

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows reading arbitrary files using the file browser for workspaces and archived artifacts by following symlinks.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  • v2.0•MEDIUM•Score: 4AV:N/AC:L/Au:S/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 1.67%• Percentile: 82%

Techniques & Countermeasures

  • CWE-59•Improper Link Resolution Before File Access ('Link Following')

    The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Systems

  • jenkins project•jenkins

    ≥ unspecified, ≤ 2.274 | ≥ unspecified, ≤ LTS 2.263.1

  • Unknown•Jenkins

    ≤ 2.263.1 | ≤ 2.274

  • org.jenkins-ci.main•jenkins-core

    < 2.263.2 | ≥ 2.264, < 2.275

References (4)