ET WEB_SPECIFIC_APPS Citrix nsroot ADM_SESSIONID Information Disclosure (CVE-2024-6235)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Citrix nsroot ADM_SESSIONID Information Disclosure (CVE-2024-6235)";
    flow:established,to_server;
    xbits:set,ET.CVE-202-6235,track ip_pair,expire 120;
    http.method;
    content:"GET";
    http.uri; bsize:44;
    content:"/internal/v2/config/mps_secret/ADM_SESSIONID"; fast_pattern;
    http.header;
    content:"Tenant-Name|3a 20|Owner";
    content:"User-Name|3a 20|nsroot";
    content:"Mps-Internal-Request|3a 20|true";
    http.header_names;
    content:!"|0d 0a|Cookie|0d 0a|";
    content:!"|0d 0a|Authorization|0d 0a|";
    reference:cve,2024-6235;
    reference:url,attackerkb.com/topics/7zebEgmGLs/cve-2024-6235;
    classtype:attempted-admin;
    sid:2061842; rev:1;
    metadata:affected_product Citrix, attack_target Web_Server, tls_state plaintext, created_at 2025_04_24, cve CVE_2024_6235, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2025_04_24, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)