ET WEB_SPECIFIC_APPS Ivanti Avalanche SmartDeviceServer XML External Entity Injection (CVE-2024-38653)

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Ivanti Avalanche SmartDeviceServer XML External Entity Injection (CVE-2024-38653)";
    flow:established,to_server;
    http.method;
    content:"PUT";
    http.uri;
    content:"/mdm/checkin"; fast_pattern;
    http.request_body;
    content:"|3c 3f|xml"; startswith;
    content:"|3c 21|ENTITY|20 25|"; distance:0;
    reference:url,github.com/pwnfuzz/POCs/tree/main/CVE%202024-38653;
    reference:cve,2024-38653;
    classtype:web-application-attack;
    sid:2059880; rev:1;
    metadata:affected_product Ivanti, attack_target Server, tls_state TLSDecrypt, created_at 2025_02_04, cve CVE_2024_38653, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Exploit, updated_at 2025_02_04, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)