alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT Possible Tenda OS Command Injection (CVE-2020-10987) (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"goform/setUsbUnload"; endswith; nocase; fast_pattern; http.request_body; content:"deviceName="; nocase; reference:url,blog.securityevaluators.com/tenda-ac1900-vulnerabilities-discovered-and-exploited-e8e26aa0bc68; reference:cve,2020-10987; classtype:attempted-admin; sid:2034490; rev:2; metadata:attack_target Server, created_at 2021_11_17, cve CVE_2020_10987, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Exploit, tag CISA_KEV, updated_at 2022_05_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)