GPL POP3 AUTH overflow attempt

Query · suricata

flow:to_server,established;
content:"AUTH"; nocase;
isdataat:50,relative;
pcre:"/^AUTH\s[^\n]{50}/smi";
Raw source GPL POP3 AUTH 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 -> $HOME_NET 110 (
    msg:"GPL POP3 AUTH overflow attempt";
    flow:to_server,established;
    content:"AUTH"; nocase;
    isdataat:50,relative;
    pcre:"/^AUTH\s[^\n]{50}/smi";
    reference:bugtraq,830;
    reference:cve,1999-0822;
    reference:nessus,10184;
    classtype:attempted-admin;
    sid:2101936; rev:9;
    metadata:created_at 2010_09_23, cve CVE_1999_0822, confidence Medium, signature_severity Major, updated_at 2019_07_26;
)

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