Cyber Resilience

CVE-2022-42785

Critical

Published: 15 November 2022

Published
15 November 2022
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0142 81.0th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-42785 is a critical-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Wut At-Modem-Emulator Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 19.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Multiple W&T products of the ComServer Series are prone to an authentication bypass. An unathenticated remote attacker, can log in without knowledge of the password by crafting a modified HTTP GET Request.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

wut
at-modem-emulator firmware
≤ 1.48
wut
com-server \+\+ firmware
≤ 1.48
wut
com-server 20ma firmware
≤ 1.48
wut
com-server highspeed 100basefx firmware
≤ 1.76
wut
com-server highspeed 100baselx firmware
≤ 1.76
wut
com-server highspeed 19\" 1port firmware
≤ 1.76
wut
com-server highspeed 19\" 4port firmware
≤ 1.76
wut
com-server highspeed compact firmware
≤ 1.76
wut
com-server highspeed industry firmware
≤ 1.76
wut
com-server highspeed isolated firmware
≤ 1.76
+7 more product configuration(s) — see NVD for full list

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.

addresses: CWE-306

Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.

addresses: CWE-306

Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.

addresses: CWE-306

Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.

addresses: CWE-306

Guarantees critical functions are protected by mandatory invocation of the access control mechanism.

addresses: CWE-306

Auditing sessions makes it possible to detect access to critical functions without required authentication.

addresses: CWE-306

The assessment process confirms authentication is present and effective for critical functions, preventing exploitation from missing authentication.

addresses: CWE-306

Certification assesses that critical functions have required authentication controls in place.

addresses: CWE-306

Disabling non-essential functions and services eliminates the need to secure them, reducing exposure from missing authentication on unnecessary components.

References