CVE-2022-42233
Published: 20 October 2022
Summary
CVE-2022-42233 is a critical-severity Improper Authentication (CWE-287) vulnerability in Tenda 11N Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 0.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
Tenda 11N wireless routers running firmware version V5.07.33_cn contain an authentication bypass vulnerability, identified as CVE-2022-42233 and mapped to CWE-287. The flaw received a CVSS v3.1 score of 9.8, driven by a vector that permits unauthenticated network access with no user interaction required and full impact on confidentiality, integrity, and availability.
An attacker positioned on the network can exploit the weakness to circumvent authentication controls, obtaining administrative access to the device and the ability to alter settings or perform other privileged operations.
Public technical details and proof-of-concept material are published in a GitHub repository. The associated EPSS score currently stands at 0.8289 with a peak of 0.8438, reflecting elevated exploitation probability.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-45309
Vulnerability details
Tenda 11N with firmware version V5.07.33_cn suffers from an Authentication Bypass vulnerability.
- 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.
Detects unauthorized successful logons resulting from improper authentication implementations.
Documented procedures ensure personnel are trained on authentication mechanisms, tangibly lowering the risk of improper authentication being exploited.
Security awareness training instructs users on secure authentication practices and avoiding credential compromise.
Training on authentication mechanisms and best practices decreases the occurrence of improper authentication.
Non-repudiation requires strong authentication mechanisms to irrefutably attribute performed actions to specific individuals or processes.
Session content review can reveal authentication bypasses or failures in session establishment.
Review of authentication-related audit records can detect improper authentication mechanisms or bypasses.
Assessments check authentication mechanisms for correct implementation and effectiveness, reducing successful authentication bypass attempts.