CVE Vulnerability

CVE-2021-31756

An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /gofrom/setwanType allows attackers to execute arbitrary code on the system via a crafted post request. This occurs when input vector controlled by malicious attack get copied to the stack variable.

10 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_1 Exploit Issue Tracking
Configurations

Configuration 1
Information

Published : 2021-05-07 11:15

Updated : 2021-05-10 02:56

NVD link : CVE-2021-31756

Mitre link : CVE-2021-31756

Products Affected

Ac11 Firmware

Tenda

CWE
CWE-787