CVE-2024-23903

Medium

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.

SeverityMedium

CVSS5.3

Exploit probability—

Product

Jenkins Github Branch Source

PublishedJan 24, 2024

First seenJan 24, 2024

Weakness typeCWE-697CWE-697

How to fix

Update

io.jenkins.plugins:gitlab-branch-source688.v5fa or later

Vendor advisories

jenkins.io/security/advisory/2024-01-24/#SECURITY-2871

Affected products

Product	Affected versions	Fixed in
jenkins github_branch_source	v ≤ 684.vea_fa_7c1e2fe3	—
io.jenkins.plugins:gitlab-branch-sourceMaven	v < 688.v5fa	688.v5fa

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