alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT TIBCO JasperReports Directory Traversal Attempt (CVE-2018-18809)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/reportresource/reportresource/?"; pcre:"/^resource=net\/sf\/jasperreports\/\.\..+/RUi"; reference:cve,2018-18809; reference:url,security.elarlang.eu/cve-2018-18809-path-traversal-in-tibco-jaspersoft.html; classtype:web-application-attack; sid:2043228; rev:2; metadata:affected_product Web_Server_Applications, created_at 2023_01_05, cve CVE_2018_18809, deployment Perimeter, deployment Internal, deployment Datacenter, deployment SSLDecrypt, confidence High, signature_severity Major, tag CISA_KEV, 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;)