full-disclosure - Re: Invalid memory access in Acronis True Image Group Server 1.5.19.191

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Message-ID: <bb31befc0803101532i15af6f60yf4726c19709602f6@mail.gmail.com>
Date: Tue, 11 Mar 2008 00:32:05 +0200
From: Dmitry <security.research.labs@...il.com>
To: "Luigi Auriemma" <aluigi@...istici.org>
Cc: vuln@...unia.com, full-disclosure@...ts.grok.org.uk,
	packet@...ketstormsecurity.org, bugtraq@...urityfocus.com,
	news@...uriteam.com
Subject: Re: Invalid memory access in Acronis True Image
	Group Server 1.5.19.191

Oh man you are a super star !!! but why no fix ???

On Mon, Mar 10, 2008 at 11:47 PM, Luigi Auriemma <aluigi@...istici.org>
wrote:

>
> #######################################################################
>
>                             Luigi Auriemma
>
> Application:  Acronis True Image Group Server
>
> http://www.acronis.com/enterprise/products/ATIES/group-server.html
> Versions:     <= 1.5.19.191
>              (included in Acronis True Image Enterprise Server
>              9.5.0.8072 and the other True Image packages)
> Platforms:    Windows
> Bug:          invalid memory access
> Exploitation: remote
> Date:         08 Mar 2008
> Author:       Luigi Auriemma
>              e-mail: aluigi@...istici.org
>              web:    aluigi.org
>
>
> #######################################################################
>
>
> 1) Introduction
> 2) Bug
> 3) The Code
> 4) Fix
>
>
> #######################################################################
>
> ===============
> 1) Introduction
> ===============
>
>
> Acronis Group Server is a component of Acronis True Image Echo Server
> (Workstation and Enterprise packages) which "allows the viewing and
> managing of backup tasks for all systems in the network from the
> Acronis Management Console".
>
>
> #######################################################################
>
> ======
> 2) Bug
> ======
>
>
> The packets used by this server contain some 16 bit fields which
> specify the length of the subsequent data.
> The problem is that the memory assigned for each packet is about 2048
> bytes so the server allocates the amount of memory specified by that 16
> bit field and then tries to copy the data from the packet into this new
> buffer with the subsequent crash of the service due to an invalid read
> access.
>
>
> #######################################################################
>
> ===========
> 3) The Code
> ===========
>
>
> http://aluigi.org/poc/acrogroup.txt
>
>  nc SERVER 9877 -v -v -u -p 9876 < acrogroup.txt
>
>
> #######################################################################
>
> ======
> 4) Fix
> ======
>
>
> No fix
>
>
> #######################################################################
>
>
> ---
> Luigi Auriemma
> http://aluigi.org
>
> _______________________________________________
> Full-Disclosure - We believe in it.
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