alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET EXPLOIT Attempted Directory Traversal via HTTP Cookie (CVE-2020-9484)"; flow:established,to_server; http.cookie; content:"JSESSIONID=../"; startswith; fast_pattern; reference:url,github.com/masahiro331/CVE-2020-9484/blob/master/README.md; reference:cve,2020-9484; classtype:attempted-recon; sid:2030256; rev:2; metadata:affected_product Tomcat, created_at 2020_06_05, cve CVE_2020_9484, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_26, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1083, mitre_technique_name File_And_Directory_Discovery; target:dest_ip;)