ET EXPLOIT F5 BIG-IP iControl REST Authentication Bypass Attempt (CVE-2022-1388) M3

Query · suricata

flow:established,to_server;
flowbits:set,ET.F5AuthBypass;
http.method;
content:!"GET";
http.uri;
content:"/mgmt/tm"; startswith;
http.header;
content:"|20|YWRtaW46";
pcre:"/^Authorization\x3a\x20[^\r\n]*YWRtaW46/mi";
http.header_names;
content:!"|0d 0a|Referer|0d 0a|"; nocase;
content:"X-F5-Auth-Token"; nocase; fast_pattern;
threshold:type limit, count 1, seconds 60, track by_src;
target:dest_ip;

Rule dependencies

Feeds into

  • 1 rule read ET.F5AuthBypass · view all
Raw source ET EXPLOIT F5 BIG-IP iControl REST Authentication Bypass Attempt (CVE-2022-1388) M3 · 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 any (
    msg:"ET EXPLOIT F5 BIG-IP iControl REST Authentication Bypass Attempt (CVE-2022-1388) M3";
    flow:established,to_server;
    flowbits:set,ET.F5AuthBypass;
    http.method;
    content:!"GET";
    http.uri;
    content:"/mgmt/tm"; startswith;
    http.header;
    content:"|20|YWRtaW46";
    pcre:"/^Authorization\x3a\x20[^\r\n]*YWRtaW46/mi";
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|"; nocase;
    content:"X-F5-Auth-Token"; nocase; fast_pattern;
    threshold:type limit, count 1, seconds 60, track by_src;
    reference:cve,2022-1388;
    classtype:attempted-admin;
    sid:2049256; rev:2;
    metadata:affected_product F5, created_at 2023_11_20, 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, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)

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