ET EXPLOIT Possible Zyxel Authentication Bypass Inbound (CVE-2021-3297)

Query · suricata

http.method;
content:"GET";
http.uri;
content:"/login_ok.htm"; fast_pattern;
http.cookie;
content:"login=1";
target:dest_ip;
Raw source ET EXPLOIT Possible Zyxel Authentication Bypass Inbound (CVE-2021-3297) · 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 EXPLOIT Possible Zyxel Authentication Bypass Inbound (CVE-2021-3297)";
    http.method;
    content:"GET";
    http.uri;
    content:"/login_ok.htm"; fast_pattern;
    http.cookie;
    content:"login=1";
    reference:url,github.com/Sec504/Zyxel-NBG2105-CVE-2021-3297;
    reference:cve,2021-3297;
    classtype:attempted-user;
    sid:2032523; rev:2;
    metadata:created_at 2021_04_06, cve CVE_2021_3297, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_04_28, 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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