Medium severity · published Jan 24, 2024
CVE-2024-23903
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…
5.3
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GB
Github Branch Source · Jenkins
through 684.vea_fa_7c1e2fe3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-23903
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-23903
Mailing List
http://www.openwall.com/lists/oss-security/2024/01/24/6
Vendor Advisory
https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-2871
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