ET EXPLOIT Attempted Remote Command Injection Inbound (CVE-2019-3929)

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
    msg:"ET EXPLOIT Attempted Remote Command Injection Inbound (CVE-2019-3929)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/cgi-bin/file_transfer.cgi"; endswith;
    http.request_body;
    content:"file_transfer="; depth:14;
    content:"&dir=|27|Pa_Note"; distance:0; fast_pattern;
    reference:url,unit42.paloaltonetworks.com/new-mirai-variant-adds-8-new-exploits-targets-additional-iot-devices/;
    classtype:attempted-admin;
    sid:2027451; rev:3;
    metadata:attack_target IoT, created_at 2019_06_11, cve CVE_2019_3929, deployment Perimeter, performance_impact Low, signature_severity Major, tag CISA_KEV, updated_at 2020_09_17, mitre_tactic_id TA0008, mitre_tactic_name Lateral_Movement, mitre_technique_id T1210, mitre_technique_name Exploitation_Of_Remote_Services;
)