ET WEB_SPECIFIC_APPS GL.iNet Possible admin sid brute force attempt (CVE-2024-39225)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS GL.iNet Possible admin sid brute force attempt (CVE-2024-39225)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:4;
    content:"/rpc";
    http.request_body;
    content:"|22|jsonrpc|22 3a 22|2.0|22|";
    content:"|22|id|22 3a|";
    content:"|22|method|22 3a 22|alive|22|";
    content:"|22|params|22 3a 7b 22|sid|22 3a|"; fast_pattern;
    threshold:type both, track by_src, count 5, seconds 60;
    reference:cve,2024-39225;
    reference:url,github.com/aggressor0/GL.iNet-Exploits/tree/main;
    classtype:attempted-admin;
    sid:2065925; rev:1;
    metadata:affected_product GL_iNet, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_11_26, cve CVE_2024_39225, deployment Perimeter, deployment Internal, performance_impact Low, confidence Medium, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_26, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)