Timing Attack Affecting org.jenkins-ci.main:jenkins-core package, versions [,2.204.2) [2.205,2.219)


0.0
medium

Snyk CVSS

    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    EPSS 0.14% (49th percentile)
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NVD
5.3 medium
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Red Hat
5.3 medium

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  • Snyk ID SNYK-JAVA-ORGJENKINSCIMAIN-3175878
  • published 20 Dec 2022
  • disclosed 24 May 2022
  • credit Alexander Brandes (NotMyFault)

How to fix?

Upgrade org.jenkins-ci.main:jenkins-core to version 2.204.2, 2.219 or higher.

Overview

org.jenkins-ci.main:jenkins-core is an open source automation server.

Affected versions of this package are vulnerable to Timing Attack due to a missing usage of a constant-time comparison when validating whether two HMACs are equal. Exploiting this vulnerability may allow attackers to use statistical methods to obtain a valid HMAC for an attacker-controlled input value.