ET EXPLOIT Pulse Secure Post-Auth OS Command Injection (CVE-2019-11539)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/dana-admin/diag/diag.cgi"; fast_pattern;
content:"&options="; distance:0;
content:"-r"; distance:0;
Raw source ET EXPLOIT Pulse Secure Post-Auth OS Command Injection (CVE-2019-11539) · 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 Pulse Secure Post-Auth OS Command Injection (CVE-2019-11539)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/dana-admin/diag/diag.cgi"; fast_pattern;
    content:"&options="; distance:0;
    content:"-r"; distance:0;
    reference:url,packetstormsecurity.com/files/154376/Pulse-Secure-8.1R15.1-8.2-8.3-9.0-SSL-VPN-Remote-Code-Execution.html;
    reference:url,packetstormsecurity.com/files/155277/Pulse-Secure-VPN-Arbitrary-Command-Execution.html;
    reference:cve,2019-11539;
    classtype:attempted-admin;
    sid:2034014; rev:1;
    metadata:affected_product Pulse_Secure, attack_target Server, created_at 2021_09_23, cve CVE_2019_11539, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_09_23, mitre_tactic_id TA0008, mitre_tactic_name Lateral_Movement, mitre_technique_id T1210, mitre_technique_name Exploitation_Of_Remote_Services;
)

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