Rule History

alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS EmbedThis GoAhead Embedded Web Server HTML Injection via name Parameter (CVE-2023-53155)"; flow:established,to_server; http.uri; content:"/goform/formtest|3f|"; fast_pattern; nocase; content:"name|3d|"; pcre:"/^(?:[^\x3c\x26\x25]*?)(?:\x3c|\x26(?:lt|#60|#x3c)\x3b|\x253[cC])(?:(?!\x3e|\x26(?:gt|#62|#x3e)\x3b|\x253[eE]).)+(?:\x3e|\x26(?:gt|#62|#x3e)\x3b|\x253[eE])(?:(?!\x3c|\x26(?:lt|#60|#x3c)\x3b|\x253[cC]).)+(?:\x3c|\x26(?:lt|#60|#x3c)\x3b|\x253[cC])(?:\x2f|\x26(?:sol|#47|#x2f)\x3b|\x2f)(?:(?!\x3e|\x26(?:gt|#62|#x3e)\x3b|\x253[eE]).)+(?:\x3e|\x26(?:gt|#62|#x3e)\x3b|\x253[eE])/R"; reference:url,www.exploit-db.com/exploits/51762; reference:cve,2023-53155; classtype:web-application-attack; sid:2065040; rev:1; metadata:affected_product EmbedThis_GoAhead, attack_target Server, tls_state TLSDecrypt, created_at 2025_10_03, cve CVE_2023_53155, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)