[TOOL] VMA Read Write Checking Tool

From: support@securiteam.com
Date: 10/10/01 

From: support@securiteam.com
To: list@securiteam.com
Subject: [TOOL] VMA Read Write Checking Tool
Message-Id: <20011010190040.3C8F4138C4@mail.der-keiler.de>
Date: Wed, 10 Oct 2001 21:00:40 +0200 (CEST)

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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  VMA Read Write Checking Tool
------------------------------------------------------------------------

DETAILS

VMA Read Write Checking tool is a small security module for Linux-2.2.19
that only works on Intel based processors. The tool wraps execve() and
checks to make sure that the caller does not call from a writeable memory
segment. Since most local (and many remote) exploits call
execve("/bin/sh",...) or similar from the stack (and environment, which is
also located on the stack), it would prevent most standard exploits from
working.

ADDITIONAL INFORMATION

The tool can be downloaded from:
 <http://www.energymech.net/users/proton>
http://www.energymech.net/users/proton

The information has been provided by <mailto:proton@energymech.net>
Proton.

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