ET EXPLOIT Possible Tenda OS Command Injection (CVE-2020-10987) (POST)

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;
)