alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Cisco Small Business Router RV Series Command Injection (CVE-2023-20128)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/cgi-bin/import_config.cgi"; fast_pattern; http.content_type; content:"multipart/form-data|3b|"; http.request_body; content:"name|3d 22|USBconfigfile|22|"; content:"|3b|"; distance:0; reference:url,www.iotsec-zone.com/article/383; reference:cve,2023-20128; classtype:web-application-attack; sid:2060434; rev:1; metadata:affected_product Cisco_RV_Series, attack_target Server, tls_state TLSDecrypt, created_at 2025_02_27, cve CVE_2023_20128, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2025_02_27, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)