CVE-2022-45504
Published: 08 December 2022
Summary
CVE-2022-45504 is a high-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Tenda W6-S Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 7.1% 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-2022-45504 is an unauthenticated remote reboot vulnerability in the Tenda W6-S wireless router running firmware v1.0.0.4(510). The flaw resides in the tpi_systool_handle function that handles requests to the /goform/SysToolRestoreSet endpoint and is associated with CWE-306 (missing authentication for critical function). The issue received a CVSS 3.1 score of 7.5 reflecting network attack vector, low complexity, and high availability impact with no confidentiality or integrity loss.
An attacker with network reachability to the device can exploit the endpoint without supplying any credentials or user interaction, causing the router to reboot on demand and producing a denial-of-service condition. The published EPSS score remains flat at 0.0912 with no material increase after disclosure.
Public references consist solely of a technical write-up and proof-of-concept on GitHub; no vendor advisory, firmware update, or mitigation guidance is referenced in the available sources.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-48370
Vulnerability details
An issue in the component tpi_systool_handle(0) (/goform/SysToolRestoreSet) of Tenda W6-S v1.0.0.4(510) allows unauthenticated attackers to arbitrarily reboot the device.
- 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.
Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.
Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.
Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.
Guarantees critical functions are protected by mandatory invocation of the access control mechanism.
Auditing sessions makes it possible to detect access to critical functions without required authentication.
The assessment process confirms authentication is present and effective for critical functions, preventing exploitation from missing authentication.
Certification assesses that critical functions have required authentication controls in place.
Disabling non-essential functions and services eliminates the need to secure them, reducing exposure from missing authentication on unnecessary components.