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Network Security Snort-Signatures
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Re: [Snort-sigs] New rule for detect ftp MKD overflow

from [Alex Kirk] Network Security [Permanent Link]
Subject: Re: [Snort-sigs] New rule for detect ftp MKD overflow
Date: Tue, 11 Oct 2005 10:16:10 -0400 
That rule already exists as SID 1973:

alert tcp $EXTERNAL_NET any -> $HOME_NET 21 (msg:"FTP MKD overflow attempt"; flow:to_server,established; content:"MKD"; nocase; isdataat:100,relative; pcre:"/^MKD\s[^\n]{100}/smi"; reference:bugtraq,612; reference:bugtraq,7278; reference:bugtraq,9872; reference:cve,1999-0911; reference:nessus,12108; classtype:attempted-admin; sid:1973; rev:9;)

I'll investigate your reference and look into getting it added if appropriate.

Alex Kirk
Community Rules Maintainer
Sourcefire, Inc.

Hi,

Please check and add this rule :

ftp.rules:alert tcp $EXTERNAL_NET any -> $HOME_NET 21 (msg:"FTP MKD overflow attempt"; content:"MKD"; nocase; pcre:"/^MKD\s[^\n]{100}/smi";
reference:bugtraq,11772; classtype:attempted-admin;)

Regards
Rmkml



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