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Symlink Attack Affecting org.jenkins-ci.main:jenkins-core package, versions [,2.303.3) [2.304,2.319)

0.0
medium

Snyk CVSS

    Attack Complexity High
    Scope Changed
    Confidentiality High

    Threat Intelligence

    EPSS 0.22% (61st percentile)
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NVD
8.8 high
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Red Hat
9 critical

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  • Snyk ID SNYK-JAVA-ORGJENKINSCIMAIN-1911969
  • published 5 Nov 2021
  • disclosed 4 Nov 2021
  • credit Unknown
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Introduced: 4 Nov 2021

CVE-2021-21695 Open this link in a new tab
CWE-22 Open this link 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 Symlink Attack. An incorrect permissions validation vulnerability was found in Jenkins. The FilePath#listFiles lists files outside directories with agent read access when following symbolic links. This may allow an attacker to get access to restricted data.