Rule History

alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS D-Link fileaccess.cgi pre_api_arg Parameter Command Injection Attempt (CVE-2025-55583)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:23; content:"/dws/api/fileaccess.cgi"; fast_pattern; http.request_body; content:"pre_api_arg|3d|"; pcre:"/^[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R"; reference:url,cybermaya.in/posts/Post-44/; reference:cve,2025-55583; classtype:attempted-admin; sid:2064112; rev:1; metadata:affected_product D_Link, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_08_22, cve CVE_2025_55583, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_08_22, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)