ET INFO Cisco IOS XE Web Server Auth From Suspicious Username (cisco_support) (CVE-2023-20198) (Outbound)
Sourceet/open
CreatedOctober 30, 2023
UpdatedOctober 31, 2023
Classificationmisc-activity
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Cisco IOS XE Web Server Auth From Suspicious Username (cisco_support) (CVE-2023-20198) (Outbound)"; flow:established,to_server; http.method; content:"GET"; http.cookie; content:"Auth=cisco_support"; startswith; fast_pattern; reference:url,blog.talosintelligence.com/active-exploitation-of-cisco-ios-xe-software/; reference:cve,2023-20198; reference:url,twitter.com/SI_FalconTeam/status/1718346358950711807; classtype:misc-activity; sid:2048935; rev:2; 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_31, reviewed_at 2023_10_30;)
References
Metadata
attack targetNetworking_Equipment
created at2023_10_30
deploymentSSLDecrypt
confidenceMedium
signature severityInformational
tagDescription_Generated_By_Proofpoint_Nexus
updated at2023_10_31
reviewed at2023_10_30
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