CVE-2021-21638 — CSRF vulnerability in Jenkins Team Foundation Server Plugin allow capturing cred

Description

A cross-site request forgery (CSRF) vulnerability in Jenkins Team Foundation Server Plugin 5.157.1 and earlier allows attackers to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

How to fix CVE-2021-21638

No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.

—no fix listed

Is CVE-2021-21638 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

from 0, <= 5.157.1

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References (4)

ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-21638
PATCHgithub.com/jenkinsci/tfs-plugin
WEBwww.jenkins.io/security/advisory/2021-03-30/#SECURITY-2283%20(2)
WEBwww.openwall.com/lists/oss-security/2021/03/30/1