Cyber Resilience

CVE-2021-21696

Critical

Published: 04 November 2021

Published
04 November 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0095 76.8th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-21696 is a critical-severity an unspecified weakness vulnerability in Jenkins Jenkins. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 23.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories when using the FilePath APIs, allowing attackers in control of agent processes to replace the code of a trusted…

more

library with a modified variant. This results in unsandboxed code execution in the Jenkins controller process.

CWE(s)
NVD-CWE-Other

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

jenkins
jenkins
≤ 2.303.2 · ≤ 2.318

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References