CVE-2021-27691 in tendacn g0 firmware

LogPulse has a published detection rule for this CVE: it raises a notable when someone tries to exploit it.

What the vulnerability is

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.

Affected software: tendacn g0 firmware, tendacn g1 firmware, tendacn g3 firmware

Scores

What LogPulse has for it

Source data: NIST NVD, CISA KEV and FIRST EPSS. LogPulse processes new CVEs every hour.

We build every detection with great care, but no two environments are the same. Log sources, parsing and configuration differ, so test a detection in your own environment before you rely on it.

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