Arbitrary Code Injection Affecting org.jenkins-ci.main:jenkins-core package, versions [,2.303.3)[2.304,2.319)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.26% (65th percentile)

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  • Snyk IDSNYK-JAVA-ORGJENKINSCIMAIN-1911964
  • published5 Nov 2021
  • disclosed4 Nov 2021
  • creditDaniel Beck of CloudBees Inc.

Introduced: 4 Nov 2021

CVE-2021-21696  (opens in a new tab)
CWE-94  (opens in a new tab)

How 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.

CVSS Scores

version 3.1