PT-2022-12340 · Tenda · Tenda Router Ax12

Published 2022-02-14 · Updated 2022-02-23 · CVE-2021-45392

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Tenda Router AX12 version V22.03.01.21 CN

Description A Buffer Overflow issue exists in the sub 422CE4 function in the page "/goform/setIPv6Status" via the prefixDelegate parameter, which causes a Denial of Service.

Recommendations For Tenda Router AX12 version V22.03.01.21 CN, as a temporary workaround, consider disabling access to the "/goform/setIPv6Status" page until a patch is available. Restrict the use of the prefixDelegate parameter in this 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-2021-45392

Affected Products

Tenda Router Ax12

References · 8

• 🔥 https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX12/2 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-45392 · Security Note
• https://tenda.com.cn/product/AX12.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-45392 · Vendor Advisory
• https://tenda.com.cn · Vendor Advisory
• http://tendawifi.com/index.html · Note
• https://t.me/cibsecurity/37438 · Telegram Post
• https://t.me/cvenotify/26751 · Telegram Post