ET WEB_SPECIFIC_APPS ProjectSend Authentication Bypass Attempt M2 - Account Creation Attempt (CVE-2024-11680)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS ProjectSend Authentication Bypass Attempt M2 - Account Creation Attempt (CVE-2024-11680)";
    flow:established,to_server;
    xbits:set,ET.ProjectSend.AccountCreation, track ip_dst,expire 60;
    http.method;
    content:"POST";
    http.uri; bsize:12;
    content:"/options.php";
    http.request_body;
    content:"csrf_token|3d|";
    content:"clients_can_register|3d|1"; fast_pattern;
    content:"clients_can_upload|3d|1";
    content:"clients_auto_approve|3d|1";
    reference:url,github.com/rapid7/metasploit-framework/pull/19531;
    reference:cve,2024-11680;
    classtype:attempted-admin;
    sid:2059744; rev:1;
    metadata:affected_product ProjectSend, attack_target Web_Server, tls_state TLSDecrypt, created_at 2025_01_29, cve CVE_2024_11680, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag CISA_KEV, updated_at 2025_01_29, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)