Public Vulnerability Reports

CA BrightStor ARCserve Backup Agent for MS SQL Server Buffer Overflow



BrightStor ARCserve Backup for Windows delivers backup and restore
protection for all Windows server systems as well as Windows, Linux,
Mac OS X and UNIX client environments.


Remote exploitation of a buffer overflow in the Backup Agent for
Microsoft SQL Server within Computer Associates' BrightStor ARCserve
Backup Agent for SQL allows an attacker to execute arbitrary code with
SYSTEM privileges.

BrightStor ARCserve Backup Agent for Microsoft SQL Server is a component
of the BrightStor ARCserve Backup system for handling backups of
Microsoft SQL server data. When a string with a length over 3168 bytes,
is sent to the listening port, 6070 by default, a stack based buffer
overflow occurs.


Successful exploitation allows remote attackers to execute arbitrary
code with SYSTEM level privileges. This allows for complete system
compromise including the installation or removal of software and access
to any file on the system.


iDEFENSE has confirmed the existence of this vulnerability in Computer
Associates BrightStor ARCserve Backup Agent for Microsoft SQL Server
version 11.0. It is suspected that all versions are vulnerable.


Restrict remote access at the network boundary, unless remote parties
require service. Access to the affected host should be filtered at the
network boundary if global accessibility is not required. Restricting
access to only trusted hosts and networks may reduce the likelihood of


A vendor advisory for this vulnerability can be found at:


The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2005-1272 to this issue. This is a candidate for inclusion in
the CVE list (, which standardizes names for
security problems.


04/25/2005   Initial vendor notification
04/25/2005   Initial vendor response
08/02/2005   Coordinated public disclosure


The discoverer of this vulnerability wishes to remain anonymous.

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Copyright © 2005 Verisign, Inc.

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