ET WEB_SPECIFIC_APPS JetBrains TeamCity Authentication Bypass Attempt (CVE-2024-27199) M3

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS JetBrains TeamCity Authentication Bypass Attempt (CVE-2024-27199) M3";
    flow:established,to_server;
    http.method;
    pcre:"/^(GE|POS)T$/";
    http.uri;
    pcre:"/^\x2f(res|update|\x2ewell-known\x2facme-challenge)\x2f/";
    content:"|2e 2e|";
    content:"/app/pipeline"; fast_pattern; distance:0;
    reference:cve,2024-27199;
    reference:url,www.rapid7.com/blog/post/2024/03/04/etr-cve-2024-27198-and-cve-2024-27199-jetbrains-teamcity-multiple-authentication-bypass-vulnerabilities-fixed/;
    classtype:bad-unknown;
    sid:2051511; rev:2;
    metadata:affected_product JetBrains_TeamCity, created_at 2024_03_06, cve CVE_2024_27199, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag JetBrains_TeamCity, tag CVE_2024_27199, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_26, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)