Cyber Resilience

CVE-2021-43576

Medium

Published: 12 November 2021

Published
12 November 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score 0.0027 51.3th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-43576 is a medium-severity Improper Restriction of XML External Entity Reference (CWE-611) vulnerability in Jenkins Pom2Config. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 48.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Jenkins pom2config Plugin 1.2 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks, allowing attackers with Overall/Read and Item/Read permissions to have Jenkins parse a crafted XML file that uses external entities for extraction…

more

of secrets from the Jenkins controller or server-side request forgery.

CWE(s)
CWE-611

Related Threats

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

Affected Assets

jenkins
pom2config
≤ 1.2

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-611

Penetration testing includes XML external entity payloads, detecting XXE vulnerabilities and enabling their mitigation.

SI-4 System Monitoring
addresses: CWE-611

Identifies XML external entity processing via monitoring of unusual file/network access or resource usage.

References