alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Citrix Netscaler Console Authenticated Arbitrary File Write (CVE-2024-12284)"; flow:established,to_server; http.uri; content:"/stylebook/nitro/v2/config/stylebooks/actions/import"; fast_pattern; http.request_body; content:"|22|import|22 3a|"; content:"|22|file_name|22 3a|"; pcre:"/^\s*\x22[^\x22]*?\x2e(?:zip|jar|tar|gz|tgz|bz2)/R"; content:"|22|base64|22|"; http.method; content:"POST"; reference:url,www.rapid7.com/blog/post/cve-2025-4365-cve-unassigned-netscaler-console-sdx-authenticated-arbitrary-file-read-write-fixed/; reference:cve,2024-12284; classtype:web-application-attack; sid:2067197; rev:1; metadata:affected_product Netscaler, attack_target Server, tls_state TLSDecrypt, created_at 2026_01_30, cve CVE_2024_12284, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2026_01_30, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)