PT-2022-25591 · Tenda · Tenda W20E

Published 2022-09-23 · Updated 2022-09-28 · CVE-2022-40866

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Tenda W20E router version 15.11.0.6

Description The issue is a stack overflow vulnerability in the formSetDebugCfg function, which is triggered by the request "/goform/setDebugCfg/". This vulnerability can be exploited, but details about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited are not provided.

Recommendations For Tenda W20E router version 15.11.0.6, consider disabling the formSetDebugCfg function as a temporary workaround until a patch is available. Restrict access to the "/goform/setDebugCfg/" endpoint to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2022-40866

Affected Products

Tenda W20E

References · 5

• 🔥 https://github.com/CPSeek/Router-vuls/blob/main/Tenda/W20E/setDebugCfg.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-40866 · Security Note
• https://osv.dev/vulnerability/CVE-2022-40866 · Vendor Advisory
• https://t.me/cibsecurity/50335 · Telegram Post
• https://t.me/cvenotify/36932 · Telegram Post