ET HUNTING Fortigate Forticlient EMS Multi-Tennant Fingerprinting Attempt

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri; bsize:19;
content:"/api/v1/init_consts"; fast_pattern;
target:dest_ip;
Raw source ET HUNTING Fortigate Forticlient EMS Multi-Tennant Fingerprinting Attempt · 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 HUNTING Fortigate Forticlient EMS Multi-Tennant Fingerprinting Attempt";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri; bsize:19;
    content:"/api/v1/init_consts"; fast_pattern;
    reference:url,bishopfox.com/blog/cve-2026-21643-pre-authentication-sql-injection-in-forticlient-ems-7-4-4;
    classtype:network-scan;
    sid:2068436; rev:1;
    metadata:affected_product FortiClient_EMS, attack_target Server, tls_state TLSDecrypt, created_at 2026_03_26, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Minor, updated_at 2026_03_26;
    target:dest_ip;
)

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