Arbitrary Code Injection Affecting org.jenkins-ci.main:jenkins-core package, versions [,2.303.3) [2.304,2.319)
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Test your applications- Snyk ID SNYK-JAVA-ORGJENKINSCIMAIN-1911964
- published 5 Nov 2021
- disclosed 4 Nov 2021
- credit Daniel Beck of CloudBees Inc.
Introduced: 4 Nov 2021
CVE-2021-21696 Open this link in a new tabHow to fix?
Upgrade org.jenkins-ci.main:jenkins-core to version 2.303.3, 2.319 or higher.
Overview
org.jenkins-ci.main:jenkins-core is an open source automation server.
Affected versions of this package are vulnerable to Arbitrary Code Injection. An incorrect permissions validation vulnerability was found in Jenkins. An agent process with read/write access to the libs/ directory inside build directories when using the FilePath APIs is not limited. This allows attackers in control of agent processes to replace the code of a trusted library with a modified variant, resulting in unsandboxed code execution in the Jenkins controller process.