PT-2022-25182 · Tenda · Tenda Ac21

Published 2022-09-19 · Updated 2022-09-21 · CVE-2022-40068

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Tenda AC21 version 16.03.08.15

Description The issue is related to a Buffer Overflow that can occur via the /bin/httpd, specifically in the function formSetQosBand(). This can be exploited through the API endpoint "/bin/httpd". The formSetQosBand function is the vulnerable component. No information is provided about the estimated number of potentially affected devices or real-world incidents.

Recommendations For Tenda AC21 version 16.03.08.15, as a temporary workaround, consider disabling the formSetQosBand function until a patch is available. Restrict access to the /bin/httpd 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-2022-40068

Affected Products

Tenda Ac21

References · 4

• 🔥 https://github.com/xxy1126/Vuln/tree/main/Tenda%20AC21/10 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-40068 · Security Note
• https://osv.dev/vulnerability/CVE-2022-40068 · Vendor Advisory
• https://t.me/cvenotify/36600 · Telegram Post