Advisory Details

November 26th, 2007

CA BrightStor ARCserve Backup Message Engine Insecure Method Exposure Vulnerability

ZDI-07-069
ZDI-CAN-143

CVE ID CVE-2007-5328
CVSS SCORE
AFFECTED VENDORS Computer Associates
AFFECTED PRODUCTS BrightStor ARCserve Server
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 5144. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

This vulnerability allows attackers to arbitrarily access and modify the file system and registry of vulnerable installations of Computer Associates BrightStor ARCserve Backup. Authentication is not required to exploit this vulnerability.

The specific flaws exists in the Message Engine RPC service which listens by default on TCP port 6504 with the following UUID:

506b1890-14c8-11d1-bbc3-00805fa6962e

The service exposes a number of insecure method calls including: 0x17F, 0x180, 0x181, 0x182, 0x183, 0x184, 0x185, 0x186, 0x187, 0x188, 0x189, 0x18A, 0x18B, and 0x18C. Attackers can leverage these methods to manipulate both the file system and registry which can result in a complete system compromise.

ADDITIONAL DETAILS Computer Associates has issued an update to correct this vulnerability. More details can be found at:
http://supportconnectw.ca.com/public/storage/infodocs/basb-secnotice.asp
DISCLOSURE TIMELINE
  • 2007-01-12 - Vulnerability reported to vendor
  • 2007-11-26 - Coordinated public release of advisory
CREDIT Tenable Network Security
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