CVE-2023-22960
Published: 23 January 2023
Summary
CVE-2023-22960 is a high-severity Improper Restriction of Excessive Authentication Attempts (CWE-307) vulnerability in Lexmark B2236 Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 2.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Lexmark products through 2023-01-10 are affected by an improper control of interaction frequency vulnerability, identified as CVE-2023-22960 and linked to CWE-307 and CWE-284. The flaw received a CVSS 3.1 score of 7.5 reflecting network attack vector, low complexity, no required privileges or user interaction, and high confidentiality impact with no effects on integrity or availability.
An unauthenticated remote attacker can exploit the weakness to obtain sensitive information by issuing excessive interactions that bypass intended controls.
Lexmark published an advisory describing the issue at https://publications.lexmark.com/publications/security-alerts/CVE-2023-22960.pdf. The associated EPSS score rose materially from a low baseline to a peak of 0.6541 before receding to the current value of 0.3552, indicating post-disclosure exploitation interest.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-27061
Vulnerability details
Lexmark products through 2023-01-10 have Improper Control of Interaction Frequency.
- 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.
The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.
Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.
Supervision and review of access control activities directly detects and remediates improper access configurations or usages.
Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.
By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.
Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.
Requiring prior authorization for each remote access type prevents improper access control over remote connections.
Requiring authorization of wireless access before allowing connections enforces proper access control for this access method.