GPL SQL TO_CHAR buffer overflow attempt

Query · suricata

flow:to_server,established;
content:"TO_CHAR"; nocase;
pcre:"/TO_CHAR\s*\(\s*SYSTIMESTAMP\s*,\s*(\x27[^\x27]{256}|\x22[^\x22]{256})/smi";
Raw source GPL SQL TO_CHAR buffer overflow attempt · Suricata
Esc
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 TO_CHAR buffer overflow attempt";
    flow:to_server,established;
    content:"TO_CHAR"; nocase;
    pcre:"/TO_CHAR\s*\(\s*SYSTIMESTAMP\s*,\s*(\x27[^\x27]{256}|\x22[^\x22]{256})/smi";
    classtype:attempted-user;
    sid:2102699; rev:2;
    metadata:created_at 2010_09_23, confidence High, signature_severity Major, updated_at 2019_07_26;
)

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