ET EXPLOIT F5 BIG-IP iControl REST Authentication Bypass (CVE-2022-1388) M1

alert http any any -> $HOME_NET any (
    msg:"ET EXPLOIT F5 BIG-IP iControl REST Authentication Bypass (CVE-2022-1388) M1";
    flow:established,to_server;
    flowbits:set,ET.F5AuthBypass;
    http.method;
    content:"POST";
    http.uri;
    content:"/mgmt/tm/util/bash"; fast_pattern; bsize:18;
    http.header;
    content:"Authorization|3a 20|Basic YWRtaW46";
    http.connection;
    content:"x-F5-Auth-Token"; nocase;
    http.header_names;
    content:!"Referer";
    content:"X-F5-Auth-Token";
    http.request_body;
    content:"command";
    content:"run"; distance:0;
    content:"utilCmdArgs"; distance:0;
    reference:cve,2022-1388;
    classtype:attempted-admin;
    sid:2036546; rev:4;
    metadata:created_at 2022_05_09, cve CVE_2022_1388, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_26, reviewed_at 2024_09_12, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)