ET WEB_SPECIFIC_APPS TrendNet formSystemCheck Multiple Parameters Command Injection Attempt (CVE-2024-37642, CVE-2023-51835)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS TrendNet formSystemCheck Multiple Parameters Command Injection Attempt (CVE-2024-37642, CVE-2023-51835)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:23;
    content:"/boafrm/formSystemCheck";
    http.request_body;
    content:"admin_ping.htm"; fast_pattern;
    pcre:"/ipv[46]\x5fping\x3d[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/";
    reference:url,pentagonal-time-3a7.notion.site/TRENDnet-TEW-822DRE-Ping-command-injection-2c8e5dd4c5a58084a3b0dcf927a755d6;
    reference:cve,2024-37642;
    reference:cve,2023-51835;
    classtype:attempted-admin;
    sid:2066749; rev:1;
    metadata:affected_product TrendNet, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_01_14, cve CVE_2024_37642, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_01_14, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)