CVE-2021-21637: Medium severity microsoft team foundation server vulnerability

Published Mar 30, 2021
·
Updated

A missing permission check in Jenkins Team Foundation Server Plugin 5.157.1 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

Affected Software

2 affected components
maven/org.jenkins-ci.plugins:tfs<=5.157.1
Jenkins Team Foundation Server Jenkins<=5.157.1

Event History

Mar 30, 2021
CVE Published
via MITRE·11:10 AM
Data Sourced
via MITRE·11:10 AM
Description
May 24, 2022
Advisory Published
05:45 PM
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Frequently Asked Questions

1

What is CVE-2021-21637?

CVE-2021-21637 is a vulnerability in Jenkins Team Foundation Server Plugin 5.157.1 and earlier that allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

2

How severe is CVE-2021-21637?

CVE-2021-21637 has a severity rating of 6.5 out of 10, which is considered medium.

3

What software versions are affected by CVE-2021-21637?

Jenkins Team Foundation Server Plugin versions up to and including 5.157.1 are affected by CVE-2021-21637.

4

How can an attacker exploit CVE-2021-21637?

An attacker with Overall/Read permission can exploit CVE-2021-21637 by connecting to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

5

Are there any references for CVE-2021-21637?

Yes, you can find more information about CVE-2021-21637 at the following references: [Reference 1](http://www.openwall.com/lists/oss-security/2021/03/30/1), [Reference 2](https://www.jenkins.io/security/advisory/2021-03-30/#SECURITY-2283%20(2))

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