CVE-2022-31845
Published: 14 June 2022
Summary
CVE-2022-31845 is a high-severity Exposure of Resource to Wrong Sphere (CWE-668) vulnerability in Wavlink Wn535G3 Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 2.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2022-31845 is an information disclosure vulnerability in the live_check.shtml endpoint of the WAVLINK WN535 G3 router running firmware M35G3R.V5030.180927. The flaw stems from improper exposure of resources (CWE-668) that permits unauthenticated invocation of the exec cmd function, resulting in leakage of sensitive router configuration and operational data. It carries a CVSS 3.1 base score of 7.5 reflecting network attack vector, low complexity, and no required credentials or user interaction.
An attacker with network access can directly target the affected endpoint to retrieve confidential device information without authentication. Successful exploitation yields high confidentiality impact while leaving integrity and availability unaffected, enabling reconnaissance that may facilitate further attacks against the router or connected networks.
Public references consist primarily of a GitHub proof-of-concept disclosure and duplicate Mitre entries; no vendor advisory, firmware patch, or official mitigation guidance is referenced in the available sources. The associated EPSS score reached a peak of 0.6168 and remains elevated at 0.5312, indicating material post-disclosure exploitation interest that warrants renewed attention from defenders.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-53201
Vulnerability details
A vulnerability in live_check.shtml of WAVLINK WN535 G3 M35G3R.V5030.180927 allows attackers to obtain sensitive router information via execution of the exec cmd function.
- 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.
Controls whether organization resources are exposed to external system spheres by permitting or prohibiting their use.
The control ensures information is not released into a security sphere where the recipient lacks matching access authorizations.
The control ensures information resources are not exposed to the incorrect (public) sphere through review and authorization.
Protects against data mining that would expose resources to unauthorized spheres by enforcing detection and controls.
Restricts information flows to ensure resources are not exposed to incorrect or unauthorized spheres.
Controlling internal connections prevents exposure of resources to unintended internal spheres.
Knowing exact processing and storage locations helps avoid exposure of resources to incorrect spheres.
The control prevents exposure of the media resource to the wrong security sphere.