Advisory Details

October 5th, 2006

CA BrightStor ARCserve Discovery Service Remote Buffer Overflow Vulnerability

ZDI-06-030
ZDI-CAN-041

CVE ID CVE-2006-5143
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 4289. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Computer Associates BrightStor ARCserve Backup, Enterprise Backup, Server Protection Suite and Business Protection Suite. Authentication is not required to exploit this vulnerability and both client and servers are affected.

The problem specifically exists within the discovery service which communicates initially over UDP port 41524 and then over TCP port 41523. Due to invalid bounds checking during TCP communications, a stack based buffer overflow may occur in ASBRDCST.DLL during a call to vsprintf().

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/basbr-secnotice.asp
DISCLOSURE TIMELINE
  • 2006-04-07 - Vulnerability reported to vendor
  • 2006-10-05 - Coordinated public release of advisory
CREDIT livesploit.com
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