Check Point Advisories

CA Products Message Engine RPC Server Opcode 43 Buffer Overflow (CVE-2006-5143)

Vulnerability
Protection

Check Point Reference:	CPAI-2006-306
Date Published:	15 Oct 2009
Severity:	Critical
Last Updated:	Thursday 15 October, 2009
Source:
Industry Reference:	CVE-2006-5143
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Computer Associates (CA) BrightStor ARCserve Backup and Business Protection Suite families of software products offer data protection for distributed servers, clients, databases and applications. They provide centralized control over a series of distribution operations including Backup and Restore, Data Migration and Threat Management. A buffer overflow vulnerability has been reported in the Message Engine of multiple products developed by Computer Associates. The vulnerability is due to the failure of the application in handling certain types of RPC requests. An unauthenticated remote attacker may use this flaw to cause denial of service or inject and execute code on the the vulnerable system 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. The service will also launch the process AsAlert.exe, presumably to generate an internal alert or to write the error to a log file. In a more sophisticated attack, where code injection is successful, the behaviour 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 Products Message Engine RPC Server Opcode 43 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: CA Products Enforcement Violation.
Attack Information: CA products message engine RPC server opcode 43 buffer overflow