CVE-2021-21691

Creating symbolic links is possible without the 'symlink' agent-to-controller access control permission in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier.
Link Following
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
jenkinsCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 63%
VendorProductVersion
jenkinsjenkins
𝑥
< 2.303.3
jenkinsjenkins
𝑥
< 2.319
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455
https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455