ET WEB_SPECIFIC_APPS better-auth Unauthenticated API Key Creation (CVE-2025-61928)

Query · suricata

flow:established,to_server;
http.uri;
content:"/api/auth/api-key/create"; fast_pattern; startswith;
http.request_body;
content:"|22|userId|22|";
content:"|22|name|22|";
http.method;
content:"POST";
target:dest_ip;
Raw source ET WEB_SPECIFIC_APPS better-auth Unauthenticated API Key Creation (CVE-2025-61928) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS better-auth Unauthenticated API Key Creation (CVE-2025-61928)";
    flow:established,to_server;
    http.uri;
    content:"/api/auth/api-key/create"; fast_pattern; startswith;
    http.request_body;
    content:"|22|userId|22|";
    content:"|22|name|22|";
    http.method;
    content:"POST";
    reference:url,zeropath.com/blog/breaking-authentication-unauthenticated-api-key-creation-in-better-auth-cve-2025-61928;
    reference:cve,2025-61928;
    classtype:web-application-attack;
    sid:2065283; rev:1;
    metadata:attack_target Server, tls_state TLSDecrypt, created_at 2025_10_21, cve CVE_2025_61928, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_21, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)

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