CVE-2023-26756
Published: 14 April 2023
Summary
CVE-2023-26756 is a high-severity Improper Restriction of Excessive Authentication Attempts (CWE-307) vulnerability in Revive Adserver. Its CVSS base score is 7.5 (High).
Operationally, ranked at the 46.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-30549
Vulnerability details
The login page of Revive Adserver v5.4.1 is vulnerable to brute force attacks. NOTE: The vendor's position is that this is effectively mitigated by rate limits and password-quality features.
- 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.
This control directly enforces limits on consecutive invalid logon attempts and automatic response (e.g., lockout) to prevent brute-force exploitation of authentication mechanisms.
Specific conditions can include excessive failed attempts, triggering stronger authentication that restricts brute-force exploitation.