Software Engineering Institute

BrightStor ARCserve Backup is a backup and data retention tool that integrates with other BrightStor Data Availability and BrightStor Storage Management solutions. Computer Associates Protection Suites offer multiple Computer Associates security and data recovery products in a single package.

BrightStor and CA (Computer Associates) Protection Suite products contain multiple buffer overflow vulnerabilities due to incorrect handling of RPC requests. These overflows may be exploited by sending a malformed RPC request with Opnum 43 (port 6503/tcp) or Opnum 45 (port 6503/tcp) to a vulnerable system.

Note that only the Microsoft Windows versions of Computer Associates products are affected by this vulnerability.

For more information, including a list of affected products, refer to the Computer Associates Security Advisory.

A remote, unauthenticated attacker may be able to execute arbitrary code with SYSTEM privileges.

Upgrade
According to Computer Associates:
Customers with vulnerable versions of the BrightStor ARCserve Backup products should upgrade to the latest versions which will be available for download from http://supportconnect.ca.com on or before October 5.

Restrict Access

Restricting access to port 6503/tcp at the network perimeter may mitigate the impact of this vulnerability.