Check Point Advisories

CA BrightStor ARCserve Backup Tape Engine Service Buffer Overflow

Vulnerability
Protection

Check Point Reference:	CPAI-2006-281
Date Published:	22 Aug 2010
Severity:	High
Last Updated:	Tuesday 22 November, 2011
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Computer Associates BrightStor ARCserve Backup products offer data protection for distributed servers, clients, databases and applications. They provide centralized control over a series of distributed operations including Backup and Restore, Data Migration and Threat Management. There exists a buffer overflow vulnerability in Computer Associates BrightStor ARCserve Backup products. The flaw is due to improper data validation during the processing of certain RPC requests sent to the Tape Engine service. A remote attacker may leverage this vulnerability to cause denial of service or inject and execute arbitrary code on the target host with system-level privileges. In an attack case where code injection is not successful, the affected service will terminate upon processing of the malicious message. If the service is not configured to restart automatically, the services will be unavailable until the process is restarted manually. In a more sophisticated attack, where code injection is successful, the behavior of the target is entirely dependent on the intended function of the injected code. The code in such a case would execute within the security context of the service process. On Windows systems, the affected service is running with System privileges, by default configuration.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the CA BrightStor ARCserve Backup Tape Engine Service Buffer Overflow protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: MS-RPC Enforcement Violation.
Attack Information: CA BrightStor ARCserve Backup Tape Engine Service Buffer Overflow