ET WEB_SPECIFIC_APPS D-Link service.cgi EVENT Parameter Command Injection Attempt (CVE-2018-25115)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS D-Link service.cgi EVENT Parameter Command Injection Attempt (CVE-2018-25115)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:12;
    content:"/service.cgi"; fast_pattern;
    http.request_body;
    content:"EVENT|3d|";
    pcre:"/^[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R";
    reference:url,github.com/Cr0n1c/dlink_shell_poc/blob/master/dlink_auth_rce;
    reference:cve,2018-25115;
    classtype:attempted-admin;
    sid:2064199; rev:1;
    metadata:affected_product D_Link, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_08_28, cve CVE_2018_25115, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_08_28, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)