Vulnerability Note VU#180336

CA BrightStor ARCserve Backup Message Engine RPC buffer overflow

Original Release date: 12 Jan 2007 | Last revised: 30 Jan 2007


The Computer Associates BrightStor ARCserve Backup Message Engine contains a buffer overflow vulnerability. If successfully exploited, this vulnerability may allow a remote attacker to execute arbitrary code.


BrightStor ARCserve Backup is a backup and data retention tool that integrates with other BrightStor Data Availability and BrightStor Storage Management solutions. The Message Engine service is installed and started automatically on BrightStor ARCserve Backup servers.

According to a report from Zero Day Initiative, the BrightStor ARCserve Backup Message Engine contains a vulnerability that is caused by incorrect handling of RPC requests. This vulnerability may be exploited by sending a malformed RPC request to port 6503/tcp or 6504/tcp on a vulnerable system.

Note that the vulnerable software may be running on any machines that have BrightStor ARCserve Backup products installed.


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


Computer Associates has released updates to address this vulnerability.

Restrict Access

Restricting access to port 6503/tcp and 6504/tcp at the network perimeter may help mitigate this vulnerability.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Computer AssociatesAffected-12 Jan 2007
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A



This vulnerability was publicly reported by the Zero Day Initiative, who in turn credit Tenable Network Security.

This document was written by Ryan Giobbi.

Other Information

  • CVE IDs: CVE-2007-0169
  • Date Public: 11 Jan 2007
  • Date First Published: 12 Jan 2007
  • Date Last Updated: 30 Jan 2007
  • Severity Metric: 2.83
  • Document Revision: 28


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