Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Cisco IOS XE Web Server execCLI in SOAP (CVE-2023-20198) (Outbound)"; flow:established,to_server; http.method; content:"POST"; http.request_body; content:"|3c 2f|wsse|3a|Username|3e 20 3c|wsse|3a|Password|3e|"; content:"|3c 2f|cmd|3e 20 3c 2f|execCLI|3e|"; fast_pattern; threshold:type limit,seconds 300,count 1,track by_src; reference:url,blog.talosintelligence.com/active-exploitation-of-cisco-ios-xe-software/; reference:cve,2023-20198; classtype:misc-activity; sid:2048942; rev:1; metadata:attack_target Networking_Equipment, created_at 2023_10_30, cve CVE_2023_20198, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Informational, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_10_30, reviewed_at 2023_10_30;)