ET INFO POST to Double Slash in URI

Query · suricata

flow:established,to_server;
http.request_line;
content:"POST|20|//|20|HTTP/1."; startswith;
http.header_names;
content:!"Referer";
Raw source ET INFO POST to Double Slash in URI · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET INFO POST to Double Slash in URI";
    flow:established,to_server;
    http.request_line;
    content:"POST|20|//|20|HTTP/1."; startswith;
    http.header_names;
    content:!"Referer";
    classtype:bad-unknown;
    sid:2033045; rev:2;
    metadata:affected_product Any, attack_target Client_Endpoint, created_at 2021_05_28, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_05_28;
)

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