CVE-2023-40343
Published: 16 August 2023
Summary
CVE-2023-40343 is a medium-severity Observable Discrepancy (CWE-203) vulnerability in Jenkins Tuleap Authentication. Its CVSS base score is 5.9 (Medium).
Operationally, ranked at the 32.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-2218
Vulnerability details
Jenkins Tuleap Authentication Plugin 1.1.20 and earlier uses a non-constant time comparison function when validating an authentication token allowing attackers to use statistical methods to obtain a valid authentication token.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Misdirection can normalize or falsify responses to eliminate observable discrepancies that aid reconnaissance.
Observable discrepancies in system behavior can be modulated to create covert storage or timing channels; the required analysis detects and constrains such avenues.
Prevents attackers from using observable differences in error responses to infer internal system details or state.