ET WEB_SPECIFIC_APPS D-Link gena.cgi service Parameter Command Injection Attempt (CVE-2025-13562, CVE-2024-23624, CVE-2019-17621)

Query · suricata

flow:established,to_server;
content:"SUBSCRIBE /gena.cgi|3f|service|3d|"; fast_pattern; depth:28;
pcre:"/^[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R";
content:"NT|3a 20|";
content:"Callback|3a 20|";
target:dest_ip;
Raw source ET WEB_SPECIFIC_APPS D-Link gena.cgi service Parameter Command Injection Attempt (CVE-2025-13562, CVE-2024-23624, CVE-2019-17621) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS D-Link gena.cgi service Parameter Command Injection Attempt (CVE-2025-13562, CVE-2024-23624, CVE-2019-17621)";
    flow:established,to_server;
    content:"SUBSCRIBE /gena.cgi|3f|service|3d|"; fast_pattern; depth:28;
    pcre:"/^[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R";
    content:"NT|3a 20|";
    content:"Callback|3a 20|";
    reference:cve,2019-17621;
    reference:cve,2025-13562;
    reference:cve,2024-23624;
    classtype:attempted-admin;
    sid:2066991; rev:1;
    metadata:affected_product D_Link, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_01_23, cve CVE_2019_17621, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_01_23, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)

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