ET EXPLOIT [NCC/FOX-IT] Possible F5 BIG-IP/BIG-IQ iControl REST RCE Attempt (CVE-2021-22986)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/mgmt/tm/util/bash"; nocase; fast_pattern;
http.request_body;
content:"|22|command|22 3a 20 22|run|22|";
content:"|22|utilCmdArgs|22 3a 20 22|";
Raw source ET EXPLOIT [NCC/FOX-IT] Possible F5 BIG-IP/BIG-IQ iControl REST RCE Attempt (CVE-2021-22986) · 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 [NCC/FOX-IT] Possible F5 BIG-IP/BIG-IQ iControl REST RCE Attempt (CVE-2021-22986)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/mgmt/tm/util/bash"; nocase; fast_pattern;
    http.request_body;
    content:"|22|command|22 3a 20 22|run|22|";
    content:"|22|utilCmdArgs|22 3a 20 22|";
    reference:url,github.com/nccgroup/Cyber-Defence/blob/master/Signatures/suricata/2021_03_cve_2021_22986.txt;
    reference:cve,2021-22986;
    classtype:attempted-admin;
    sid:2032220; rev:1;
    metadata:created_at 2021_03_19, cve CVE_2021_22986, confidence Medium, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_03_19;
)

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