=======
Summary
=======
Today: 31 January 2007
Reference: NGS00403
Discover: Mark Litchfield
Name: Remote Unauthenticated Code Execution II CA BrightStor ARCserve Backup
for Laptops & Desktops r11.1
Vendor: Computer Associates
Systems Affected: BrightStor ARCserve Backup for Laptops & Desktops r11.1
Risk: Critical
Status: Published
========
TimeLine
========
Discovered: 23 June 2006
Released: 23 June 2006
Approved: 23 June 2006
Reported: 22 June 2006
Fixed: 23 January 2007
Published: 30 January 2007
===========
Description
===========
By sending a specially crafted packet to the LGSERVER.EXE process that
listens on TCP port 1900, it is possible to cause a stack overflow that
allows arbitrary code execution as Local System.
=================
Technical Details
=================
The format of the packet that's sent to LGSERVER.EXE that listens on TCP
port 1900 is as follows:
ddddddddddxxxxxxxxxxxxxxxxxxxxx
where dddddddddd is a ten-character long zero-padded decimal value
equating to the length of xxxxxxxxxxxxxxxxxxxxx (ATOI). If dddddddddd is
set to 0000032767 and xxxxxxxxxxxxxxxxxxxxx is set appropriately, a stack
buffer is overwritten, and it is possible to gain control of execution. By
default on Windows, LGSERVER.EXE (the Mobile Backup Service) runs as Local
System.
===============
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
--
E-MAIL DISCLAIMER
The information contained in this email and any subsequent
correspondence is private, is solely for the intended recipient(s) and
may contain confidential or privileged information. For those other than
the intended recipient(s), any disclosure, copying, distribution, or any
other action taken, or omitted to be taken, in reliance on such
information is prohibited and may be unlawful. If you are not the
intended recipient and have received this message in error, please
inform the sender and delete this mail and any attachments.
The views expressed in this email do not necessarily reflect NGS policy.
NGS accepts no liability or responsibility for any onward transmission
or use of emails and attachments having left the NGS domain.
NGS and NGSSoftware are trading names of Next Generation Security
Software Ltd. Registered office address: 52 Throwley Way, Sutton, SM1
4BF with Company Number 04225835 and VAT Number 783096402
