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Team Foundation Server CVE-2021-21636

MEDIUM
Missing Authorization (CWE-862)
2021-03-30 jenkinsci-cert@googlegroups.com
Jenkins Authentication Bypass Team Foundation Server
4.3
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

1
CVE Published
Mar 30, 2021 - 12:16 nvd
MEDIUM 4.3

DescriptionNVD

A missing permission check in Jenkins Team Foundation Server Plugin 5.157.1 and earlier allows attackers with Overall/Read permission to enumerate credentials ID of credentials stored in Jenkins.

AnalysisAI

A missing permission check in Jenkins Team Foundation Server Plugin 5.157.1 and earlier allows attackers with Overall/Read permission to enumerate credentials ID of credentials stored in Jenkins. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. A missing permission check in Jenkins Team Foundation Server Plugin 5.157.1 and earlier allows attackers with Overall/Read permission to enumerate credentials ID of credentials stored in Jenkins. Affected products include: Jenkins Team Foundation Server.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.

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CVE-2021-21636 vulnerability details – vuln.today
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