ET POLICY F5 BIG-IP Publicly Accessible Exposed REST API Detected

Query · suricata

flow:from_server,established;
http.stat_code;
content:"401";
file.data;
content:"resterrorresponse"; fast_pattern;
flowbits:isset,ET.F5.exposed.api;

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET POLICY F5 BIG-IP Publicly Accessible Exposed REST API Detected · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http [$HOME_NET,$HTTP_SERVERS] any -> $EXTERNAL_NET any (
    msg:"ET POLICY F5 BIG-IP Publicly Accessible Exposed REST API Detected";
    flow:from_server,established;
    http.stat_code;
    content:"401";
    file.data;
    content:"resterrorresponse"; fast_pattern;
    flowbits:isset,ET.F5.exposed.api;
    classtype:policy-violation;
    sid:2036505; rev:1;
    metadata:created_at 2022_05_06, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_05_06;
)

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