ET EXPLOIT Possible Gitlab CE/EE Image Parser RCE Inbound (CVE-2021-22205)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/uploads/user";
http.request_body;
content:"Content-Type|3a 20|image/jpeg";
content:"DJVMDIRM|00|";
content:"DJVIANT";
content:"|7b|";
content:"|7d|"; distance:0; within:400;
Raw source ET EXPLOIT Possible Gitlab CE/EE Image Parser RCE Inbound (CVE-2021-22205) · 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 -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET EXPLOIT Possible Gitlab CE/EE Image Parser RCE Inbound (CVE-2021-22205)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/uploads/user";
    http.request_body;
    content:"Content-Type|3a 20|image/jpeg";
    content:"DJVMDIRM|00|";
    content:"DJVIANT";
    content:"|7b|";
    content:"|7d|"; distance:0; within:400;
    reference:cve,2021-22205;
    classtype:attempted-admin;
    sid:2034455; rev:2;
    metadata:attack_target Server, created_at 2021_11_13, cve CVE_2021_22205, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Exploit, tag CISA_KEV, updated_at 2021_11_13, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)

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