ET WEB_SPECIFIC_APPS SmarterTools SmarterMail Authentication Bypass (CVE-2026-23760)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS SmarterTools SmarterMail Authentication Bypass (CVE-2026-23760)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/api/v1/auth/force-reset-password"; fast_pattern;
    http.request_body;
    content:"|22|IsSysAdmin|22 3a|";
    content:"|22|true|22|"; within:7;
    reference:url,labs.watchtowr.com/attackers-with-decompilers-strike-again-smartertools-smartermail-wt-2026-0001-auth-bypass/;
    reference:cve,2026-23760;
    classtype:web-application-attack;
    sid:2067124; rev:2;
    metadata:affected_product SmarterTools_SmarterMail, attack_target Server, tls_state TLSDecrypt, created_at 2026_01_27, cve CVE_2026_23760, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, updated_at 2026_02_10, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)