GPL EXPLOIT login buffer non-evasive overflow attempt

Query · suricata

flow:to_server,established;
flowbits:isnotset,ttyprompt;
content:"|FF FA|'|00 00|"; rawbytes;
pcre:"/T.*?T.*?Y.*?P.*?R.*?O.*?M.*?P.*?T/RBi";
flowbits:set,ttyprompt;

Rule dependencies

Excludes

  • ttyprompt — excluded, not a dependency

Feeds into

  • Nothing indexed reads ttyprompt.
Raw source GPL EXPLOIT login buffer non-evasive 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 -> $TELNET_SERVERS 23 (
    msg:"GPL EXPLOIT login buffer non-evasive overflow attempt";
    flow:to_server,established;
    flowbits:isnotset,ttyprompt;
    content:"|FF FA|'|00 00|"; rawbytes;
    pcre:"/T.*?T.*?Y.*?P.*?R.*?O.*?M.*?P.*?T/RBi";
    flowbits:set,ttyprompt;
    reference:bugtraq,3681;
    reference:cve,2001-0797;
    classtype:attempted-admin;
    sid:2103274; rev:4;
    metadata:created_at 2010_09_23, cve CVE_2001_0797, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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