GPL RPC mountd TCP mount path overflow attempt

Query · suricata

flow:to_server,established;
content:"|00 01 86 A5 00|"; depth:5; offset:16;
content:"|00 00 00 01|"; within:4; distance:3;
byte_jump:4,4,relative,align;
byte_jump:4,4,relative,align;
byte_test:4,>,1023,0,relative;
content:"|00 00 00 00|"; depth:4; offset:8;
Raw source GPL RPC mountd TCP mount path 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 -> $HOME_NET any (
    msg:"GPL RPC mountd TCP mount path overflow attempt";
    flow:to_server,established;
    content:"|00 01 86 A5 00|"; depth:5; offset:16;
    content:"|00 00 00 01|"; within:4; distance:3;
    byte_jump:4,4,relative,align;
    byte_jump:4,4,relative,align;
    byte_test:4,>,1023,0,relative;
    content:"|00 00 00 00|"; depth:4; offset:8;
    reference:bugtraq,8179;
    reference:cve,2003-0252;
    reference:nessus,11800;
    classtype:misc-attack;
    sid:2102184; rev:8;
    metadata:created_at 2010_09_23, cve CVE_2003_0252, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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