GPL SQL user name buffer overflow attempt

Query · suricata

flow:to_server,established;
content:"connect_data"; nocase;
content:"|28|user="; nocase;
isdataat:1000,relative;
content:!"|22|"; within:1000;
content:!"|29|"; within:1000;
Raw source GPL SQL user name buffer overflow attempt · 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 tcp $EXTERNAL_NET any -> $SQL_SERVERS $ORACLE_PORTS (
    msg:"GPL SQL user name buffer overflow attempt";
    flow:to_server,established;
    content:"connect_data"; nocase;
    content:"|28|user="; nocase;
    isdataat:1000,relative;
    content:!"|22|"; within:1000;
    content:!"|29|"; within:1000;
    reference:url,www.appsecinc.com/Policy/PolicyCheck62.html;
    classtype:attempted-user;
    sid:2102650; rev:4;
    metadata:created_at 2010_09_23, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_05_02;
)

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