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5.8
CVSSv2

CVE-2021-21686

Published: 04/11/2021 Updated: 22/11/2023
CVSS v2 Base Score: 5.8 | Impact Score: 4.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 8.1 | Impact Score: 5.2 | Exploitability Score: 2.8
VMScore: 516
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N
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Vulnerability Summary

File path filters in the agent-to-controller security subsystem of Jenkins 2.318 and previous versions, LTS 2.303.2 and previous versions do not canonicalize paths, allowing operations to follow symbolic links to outside allowed directories.

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Vendor Advisories

Arch Linux Issues:
A security issue has been found in Jenkins before version 2319 File path filters do not canonicalize paths, allowing operations to follow symbolic links to outside allowed directories This allows agent processes to read and write arbitrary files on the Jenkins controller file system, and obtain some information about Jenkins controller file syst ...

References

CWE-59https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455https://nvd.nist.govhttps://security.archlinux.org/CVE-2021-21686
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-4761command injectionCVE-2024-3676IDORCVE-2024-30039CVE-2024-32113CVE-2024-30049CVE-2024-4776SQL injection
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