Date: Fri, 18 Jun 2021 11:16:07 +0200 From: Daniel Beck <ml@...kweb.net> To: oss-security@...ts.openwall.com Subject: Vulnerability in Jenkins Generic Webhook Trigger Plugin Jenkins is an open source automation server which enables developers around the world to reliably build, test, and deploy their software. The following releases contain fixes for security vulnerabilities: * Generic Webhook Trigger Plugin 1.74 Summaries of the vulnerabilities are below. More details, severity, and attribution can be found here: https://www.jenkins.io/security/advisory/2021-06-18/ We provide advance notification for security updates on this mailing list: https://groups.google.com/d/forum/jenkinsci-advisories If you discover security vulnerabilities in Jenkins, please report them as described here: https://www.jenkins.io/security/#reporting-vulnerabilities --- SECURITY-2330 / CVE-2021-21669 Generic Webhook Trigger Plugin 1.72 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks. This allows attackers with the ability to call webhooks configured to extract parameters using XPath to have Jenkins parse a crafted XML request body that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.
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