alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Draytek mainfunction.cgi doCfgExport option Arbitrary File Read Attempt (CVE-2023-1009)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:25; content:"/cgi-bin/mainfunction.cgi"; fast_pattern; http.request_body; content:"action|3d|doCfgExport"; content:"option|3d|"; pcre:"/^[^\x26]*?(?:(?:\x2e|%2[Ee]){1,2}(?:\x2f|\x5c|%5[Cc]|%2[Ff]){1,}){1,}/R"; content:"rtick|3d|"; reference:cve,2023-1009; reference:url,github.com/xxy1126/Vuln/blob/main/Draytek/1.md; classtype:attempted-admin; sid:2058394; rev:1; metadata:affected_product DrayTek, attack_target Networking_Equipment, tls_state plaintext, created_at 2024_12_18, cve CVE_2023_1009, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2024_12_18, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)