[Snort-devel] [Snort-Devel] bug in http preprocessor and non ascii characters 2.8.6.1

Bhagya Bantwal bbantwal at ...402...
Wed Mar 16 13:23:28 EDT 2011


You can turn on extended_ascii_uri in http_inspect_server to handle non
printable letters.

-B
On Wed, Mar 16, 2011 at 1:02 PM, matan monitz <mmonitz at ...2499...> wrote:

> hello
> i am encountering runaway uri buffers when inspecting packets with non
> ascii characters in the uri
> what basically happens is that for some reason if the uri contains non
> printable letters (hebrew ansi from IE for instance) the uri buffer gets
> filled with header data resulting in false positives
> i haven't tested the buffers using the methods described in the recent blog
> post but have tested it with custom rules and was able to recreate the bug
> is this a known bug or some configuration option i'm missing?
>  i can post the test pcaps and rules if needed
>
>
>
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