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Jenkins Advisory 2024-01-24: CVE-2024-23903: Non-constant time webhook token comparison in GitLab Branch Source Plugin

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Jenkins Advisory 2024-01-24: CVE-2024-23903: Non-constant time webhook token comparison in GitLab Branch Source Plugin

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
01/25/2024
Created
01/26/2024
Added
01/25/2024
Modified
02/02/2024

Description

Jenkins GitLab Branch Source Plugin 684.vea_fa_7c1e2fe3 and earlier uses a non-constant time comparison function when checking whether the provided and expected webhook token are equal, potentially allowing attackers to use statistical methods to obtain a valid webhook token.

Solution(s)

  • jenkins-lts-upgrade-2_426_3
  • jenkins-upgrade-2_442

References

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