ET WEB_SPECIFIC_APPS Wavlink adm.cgi Multiple Parameters Command Injection Attempt (CVE-2025-50757, 2025-50755, CVE-2024-48705)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Wavlink adm.cgi Multiple Parameters Command Injection Attempt (CVE-2025-50757, 2025-50755, CVE-2024-48705)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:16;
    content:"/cgi-bin/adm.cgi"; fast_pattern;
    http.request_body;
    pcre:"/(?:username|command|newpass)\x3d[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/";
    reference:cve,2025-50757;
    reference:cve,2024-48705;
    reference:url,github.com/Summermu/VulnForIoT;
    reference:cve,2025-50755;
    classtype:attempted-admin;
    sid:2064278; rev:1;
    metadata:affected_product Wavlink, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_09_03, cve CVE_2025_50757_CVE_2024_48705, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_09_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)