IDS mailing list archives

Re: HTTP traffic


From: abhicc285 () gmail com
Date: 18 Jul 2007 03:42:49 -0000


When we write any rules for HTTP traffic will >there be any issue of false positive ?


Hi,

 HTTP rules are prone to false positive as well. For example, there is a vulnerability called as MS dos Device name 
vulnerability.  To prevent this vulnerability, MS Dos Device name like aux, com, lpt needs to be blocked. If your rule 
is blocking only com, the rule will end up blocking all the .com as well, triggering lot of false positives.

Hope it helps
Abhi

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