ET WEB_SPECIFIC_APPS Roundcube Webmail Cross-Site Scripting (CVE-2024-42009)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Roundcube Webmail Cross-Site Scripting (CVE-2024-42009)";
    flow:established,to_server;
    http.request_body;
    content:"message|3d|";
    pcre:"/^.*?\x3cbody\x20[^\x3e]*?\x20on[a-z]+\x3d/R";
    content:"email|3d|";
    content:"content|3d|html"; fast_pattern;
    content:"recipient|3d|";
    http.method;
    content:"POST";
    reference:url,www.sonarsource.com/blog/government-emails-at-risk-critical-cross-site-scripting-vulnerability-in-roundcube-webmail/;
    reference:cve,2024-42009;
    classtype:web-application-attack;
    sid:2066621; rev:1;
    metadata:affected_product Roundcube, attack_target Server, tls_state TLSDecrypt, created_at 2026_01_08, cve CVE_2024_42009, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2026_01_08, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)