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CVE-2024-23903

UNKNOWN
Published 2024-01-24T17:52:26.696Z
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CVSS Score

V3.1
5.3
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.246
Higher than 24.6% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
LOW
Integrity
NONE
Availability
NONE

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Jenkins Project

Jenkins GitLab Branch Source Plugin

Affected Versions:

0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed LOW

Non-constant time webhook token comparison in Jenkins GitLab Branch Source Plugin

GHSA-f67f-2j6r-m4c9

Advisory Details

Jenkins GitLab Branch Source Plugin 684.vea_fa_7c1e2fe3 and earlier does not use a constant-time comparison function when checking whether the provided and expected webhook token are equal. This could potentially allow attackers to use statistical methods to obtain a valid webhook token. GitLab Branch Source Plugin 688.v5fa_356ee8520 uses a constant-time comparison function when validating the webhook token.

Affected Packages

Maven io.jenkins.plugins:gitlab-branch-source
ECOSYSTEM: ≥0 <688.v5fa

CVSS Scoring

CVSS Score

2.5

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-23903
WEB https://github.com/jenkinsci/gitlab-branch-source-plugin/commit/8bfe1046cf342b99419457b9336addbbf346f89a
PACKAGE https://github.com/jenkinsci/gitlab-branch-source-plugin
WEB https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-2871
WEB http://www.openwall.com/lists/oss-security/2024/01/24/6

Advisory provided by GitHub Security Advisory Database. Published: January 24, 2024, Modified: January 31, 2024

References

https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-2871
http://www.openwall.com/lists/oss-security/2024/01/24/6
Published: 2024-01-24T17:52:26.696Z
Last Modified: 2025-02-13T17:39:59.383Z
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