ET WEB_SPECIFIC_APPS Paessler PRTG Unauthenticated Local File Inclusion/Authentication Bypass Attempt (CVE-2018-19410)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Paessler PRTG Unauthenticated Local File Inclusion/Authentication Bypass Attempt (CVE-2018-19410)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:41;
    content:"/public/login.html|3f|file|3d|/api/addusers.htm"; fast_pattern;
    http.request_body;
    content:"id|3d|";
    content:"users|3d|";
    reference:url,medium.com/@qdoan95/building-an-exploit-for-cve-2018-19410-1475f555f74c;
    reference:cve,2018-19410;
    classtype:attempted-admin;
    sid:2071341; rev:1;
    metadata:affected_product Paessler_PRTG, attack_target Web_Server, tls_state plaintext, created_at 2026_07_28, cve CVE_2018_19410, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_07_28, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)