CVE-2022-45551
Published: 03 March 2023
Summary
CVE-2022-45551 is a critical-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Zbt We1626 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 13.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2022-45551 affects the Shenzhen Zhiboton Electronics ZBT WE1626 wireless router running firmware version 21.06.18. The flaw stems from missing authentication for a critical function (CWE-306) on the Network Diagnosis endpoint, where an unauthenticated caller can supply a WGET command. The vulnerability received a CVSS 3.1 base score of 9.8, reflecting network attack vector, low complexity, and no required privileges or user interaction.
An attacker with network reachability can directly invoke the endpoint to execute arbitrary commands under elevated privileges, resulting in full compromise of confidentiality, integrity, and availability on the device. No prior authentication or user interaction is needed, enabling remote takeover of the router and any attached network segments.
Public references consist of the vendor domains and a technical disclosure write-up; none of the listed sources describe an official patch, firmware update, or mitigation steps.
EPSS for the CVE rose from a low baseline to a peak of 0.1080 before receding to the current value of 0.0267, indicating a period of increased exploitation interest after public disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-48417
Vulnerability details
An issue discovered in Shenzhen Zhiboton Electronics ZBT WE1626 Router v 21.06.18 allows attackers to escalate privileges via WGET command to the Network Diagnosis endpoint.
- 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.