ET WEB_SPECIFIC_APPS Palo Alto GlobalProtect Directory Traversal in Session Cookie (CVE-2024-3400)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Palo Alto GlobalProtect Directory Traversal in Session Cookie (CVE-2024-3400)";
    flow:established,to_server;
    http.cookie;
    content:"SESSID="; startswith;
    content:"|2e 2e 2f 2e 2e 2f|";
    http.request_body;
    content:"gwHipReportCheck|3d|"; fast_pattern;
    http.method;
    content:"POST";
    reference:url,labs.watchtowr.com/palo-alto-putting-the-protecc-in-globalprotect-cve-2024-3400/;
    reference:url,www.volexity.com/blog/2024/05/15/detecting-compromise-of-cve-2024-3400-on-palo-alto-networks-globalprotect-devices/;
    reference:cve,2024-3400;
    classtype:trojan-activity;
    sid:2065037; rev:1;
    metadata:affected_product Palo_Alto_Networks, attack_target Server, tls_state TLSDecrypt, created_at 2025_10_02, cve CVE_2024_3400, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_02, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)