alert http any any -> $HOME_NET any (
msg:"ET WEB_SPECIFIC_APPS Citrix StoreFront Reflected Cross-Site Scripting (CVE-2023-5914)";
flow:established,to_server;
flowbits:set,ET.Citrix.CVE_2023_5914;
http.uri;
content:"/Citrix/teststoreAuth/SamlTest"; fast_pattern;
http.method;
content:"POST";
reference:url,www.assetnote.io/resources/research/continuing-the-citrix-saga-cve-2023-5914-cve-2023-6184;
reference:cve,2023-5914;
classtype:web-application-attack;
sid:2065778; rev:1;
metadata:affected_product Citrix, attack_target Server, tls_state TLSDecrypt, created_at 2025_11_14, cve CVE_2023_5914, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_14, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
target:dest_ip;
)