Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1weGdxLWdxcjktNWd3eM4AAnOR

Path traversal vulnerability in Jenkins agent names

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows users with Agent/Configure permission to choose agent names that cause Jenkins to override unrelated config.xml files. If the global config.xml file is replaced, Jenkins will start up with unsafe legacy defaults after a restart.

Jenkins 2.275, LTS 2.263.2 ensures that agent names are considered valid names for items to prevent this problem.

In case of problems, this change can be reverted by setting the Java system property jenkins.model.Nodes.enforceNameRestrictions to false.

Permalink: https://github.com/advisories/GHSA-pxgq-gqr9-5gwx
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1weGdxLWdxcjktNWd3eM4AAnOR
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: almost 2 years ago
Updated: 4 months ago

CVSS Score: 8.0
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Identifiers: GHSA-pxgq-gqr9-5gwx, CVE-2021-21605
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-21605
• https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-2021
• https://github.com/jenkinsci/jenkins/commit/b19b34db4b24b163d4edc53ccb84f41a3589cb08
• https://github.com/advisories/GHSA-pxgq-gqr9-5gwx

Repository: https://github.com/jenkinsci/jenkins
Blast Radius: 1.0

Affected Packages