bugtraq - Remote DOS BrightStor ARCserve Backup for Laptops & Desktops

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Date: Wed, 31 Jan 2007 01:56:20 -0000
From: "NGS Software Insight Security Research" <mark@...bery.com>
To: <bugtraq@...urityfocus.com>, <vulnwatch@...nwatch.org>,
	<full-disclosure@...ts.netsys.com>
Subject: Remote DOS BrightStor ARCserve Backup for Laptops & Desktops

=======
Summary
=======
Today: 31 January 2007
Reference: NGS00402
Discover: Mark Litchfield
Name: Remote DOS BrightStor ARCserve Backup for Laptops & Desktops r11.1
Vendor: Computer Associates
Systems Affected: BrightStor ARCserve Backup for Laptops & Desktops r11.1
Risk: High
Status: Published

========
TimeLine
========
Discovered: 19 June 2006
Released: 19 June 2006
Approved: 19 June 2006
Reported: 22 June 2006
Fixed: 23 January 2007
Published: 30 January 2007

===========
Description
===========
By sending a specially crafted series of packets to the LGSERVER.EXE
process that listens on TCP port 2200, it is possible to cause the process
to terminate.

=================
Technical Details
=================
During the authentication negotiation, the third client packet at HEX
address (DWORD) 0x11 - 0x14 in the third client packet specifies a data
length. Setting this this value to 0xff 0xff 0xff 0xff causes a read
access violation to occur, terminating the process.

*********************************************************************************************************************

===============
Fix Information
===============
http://supportconnectw.ca.com/public/sams/lifeguard/infodocs/babldimpsec-notice.asp

NGSSoftware Insight Security Research
http://www.ngssoftware.com
http://www.databasesecurity.com/
http://www.nextgenss.com/
+44(0)208 401 0070

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