Mailing-List: contact users-help@httpd.apache.org; run by ezmlm
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Reply-To: users@httpd.apache.org
Date: Wed, 29 Oct 2003 13:50:37 -0500 (Est)
From: Joshua Slive <joshua@slive.ca>
To: users@httpd.apache.org
In-Reply-To: <Pine.GSO.4.30L2.0310291333080.12125-100000@qmail>
Message-ID: <Pine.WNT.4.58.0310291349250.1664@Poste3947.hec.ca>
References: <Pine.GSO.4.30L2.0310291333080.12125-100000@qmail>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Subject: Re: [users@httpd] apache vulnerability


On Wed, 29 Oct 2003, Asif Iqbal wrote:

>
> Hi All
>
> According to this url
>
> http://www.secunia.com/advisories/10096
>
> mod_alias and mod_rewrite have possible buffer overfolw vulnerabilities "if they
> are configured with a regular expression with more than 9 captures".
> Exploitation requires a specially crafted .htaccess file
>
> How would I know if I am using 9 captures or not ? Sorry for a newbie question

A "capture" in a regular expression, is something between parathesis, as
in (.*) or ([a-z]+).  I'm sure there are VERY few people using more than 9
captures.

Joshua.

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