Rule History

alert http any any -> $HTTP_SERVERS any (msg:"ET EXPLOIT Citrix Application Delivery Controller Arbitrary Code Execution Attempt Scanner Attempt (CVE-2019-19781)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/vpns/cfg/smb.con"; nocase; fast_pattern; http.uri.raw; pcre:"/(?:(?:%2F|\/)(?:\.|%2E){2}(?:%2F|\/))/i"; reference:url,github.com/trustedsec/cve-2019-19781; reference:cve,2019-19781; classtype:attempted-admin; sid:2035110; rev:2; metadata:created_at 2022_02_05, cve CVE_2019_19781, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_02_05;)