jenkinsci/fstrigger-plugin · Security
XXE vulnerability in Jenkins Filesystem Trigger Plugin
- GHSA ID
- GHSA-cphv-7cxw-5hcc
- CVE ID
- CVE-2021-21657
- Severity
- high
- Published
- Updated
- CVSS
- 8.8 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 8.8 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
Jenkins Filesystem Trigger Plugin 0.40 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
This allows attackers with Job/Configure permission or otherwise able to control the contents of an XML file being polled for changes to have Jenkins parse a crafted XML document that uses external entities for extraction of secrets from the polling Jenkins controller or agent, server-side request forgery, or denial-of-service attacks.
Jenkins Filesystem Trigger Plugin 0.41 disables external entity resolution for its XML parser.
CWEs
- CWE-611 · Improper Restriction of XML External Entity Reference