#VU51819 Permissions, Privileges, and Access Controls in Team Foundation Server - CVE-2021-21636

Vulnerability identifier: #VU51819

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-21636

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Team Foundation Server
Web applications / Modules and components for CMS

Vendor: Jenkins

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to the affected plugin does not perform a permission check in an HTTP endpoint. A remote authenticated attacker can enumerate credentials IDs of credentials stored in Jenkins.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Team Foundation Server: 1.0 - 5.157.1

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External links
https://www.openwall.com/lists/oss-security/2021/03/30/1
https://www.jenkins.io/security/advisory/2021-03-30/#SECURITY-2283%20(1)

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.