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Security Advisories: GSA_kwCzR0hTQS1jcGh2LTdjeHctNWhjY84AAolj
XXE vulnerability in Jenkins Filesystem Trigger Plugin
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.
Permalink: https://github.com/advisories/GHSA-cphv-7cxw-5hccJSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1jcGh2LTdjeHctNWhjY84AAolj
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: almost 2 years ago
Updated: 7 months ago
CVSS Score: 8.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Identifiers: GHSA-cphv-7cxw-5hcc, CVE-2021-21657
References:
- https://nvd.nist.gov/vuln/detail/CVE-2021-21657
- https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2339
- http://www.openwall.com/lists/oss-security/2021/05/25/3
- https://github.com/advisories/GHSA-cphv-7cxw-5hcc
Affected Packages
maven:org.jenkins-ci.plugins:fstrigger
Affected Version Ranges: <= 0.40Fixed in: 0.41