Remote Command Execution in Tenda G0, G1, and G3 Routers with Firmware Versions v15.11.0.6(9039)_CN, v15.11.0.5(5876)_CN, v15.11.0.17(9502)_CN, and v15.11.0.16(9024)_CN

CVE-2021-27691 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Command Injection in Tenda G0 routers with firmware versions v15.11.0.6(9039)_CN and v15.11.0.5(5876)_CN , and Tenda G1 and G3 routers with firmware versions v15.11.0.17(9502)_CN or v15.11.0.16(9024)_CN allows remote attackers to execute arbitrary OS commands via a crafted action/setDebugCfg request. This occurs because the "formSetDebugCfg" function executes glibc's system function with untrusted input.

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