ET EXPLOIT Atlassian Confluence RCE Attempt Observed (CVE-2023-22527) M1

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".vm"; endswith;
http.request_body;
content:".KEY_velocity.struts2"; fast_pattern;
content:"|7b|"; distance:0;
content:"|7d|"; distance:0;
Raw source ET EXPLOIT Atlassian Confluence RCE Attempt Observed (CVE-2023-22527) M1 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET EXPLOIT Atlassian Confluence RCE Attempt Observed (CVE-2023-22527) M1";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".vm"; endswith;
    http.request_body;
    content:".KEY_velocity.struts2"; fast_pattern;
    content:"|7b|"; distance:0;
    content:"|7d|"; distance:0;
    reference:cve,2023-22527;
    classtype:attempted-admin;
    sid:2050340; rev:1;
    metadata:affected_product Atlassian_Confluence, attack_target Server, created_at 2024_01_23, cve CVE_2023_22527, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Exploit, tag CISA_KEV, updated_at 2024_01_23, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)

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