ET EXPLOIT Citrix Application Delivery Controller Arbitrary Code Execution Attempt Scanner Attempt - Server Response (CVE-2019-19781)

Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
http.header;
content:"Via|3a 20|NS-CACHE-";
http.response_body;
content:"|5b|global|5d|"; startswith;
content:"encrypt passwords"; distance:0; fast_pattern;
Raw source ET EXPLOIT Citrix Application Delivery Controller Arbitrary Code Execution Attempt Scanner Attempt - Server Response (CVE-2019-19781) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HTTP_SERVERS any -> any any (
    msg:"ET EXPLOIT Citrix Application Delivery Controller Arbitrary Code Execution Attempt Scanner Attempt - Server Response (CVE-2019-19781)";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    http.header;
    content:"Via|3a 20|NS-CACHE-";
    http.response_body;
    content:"|5b|global|5d|"; startswith;
    content:"encrypt passwords"; distance:0; fast_pattern;
    reference:url,github.com/trustedsec/cve-2019-19781;
    reference:cve,2019-19781;
    classtype:attempted-admin;
    sid:2035111; rev:2;
    metadata:attack_target Server, created_at 2022_02_05, cve CVE_2019_19781, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, tag CISA_KEV, updated_at 2022_02_05, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)

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