Advisory Details

August 16th, 2011

Symantec Veritas Storage Foundation vxsvc.exe Unicode String Parsing Remote Code Execution Vulnerability

ZDI-11-262
ZDI-CAN-1111

CVE ID CVE-2011-0547
CVSS SCORE 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Symantec
AFFECTED PRODUCTS Veritas Storage Foundation
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 11573. 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 Symantec Veritas Storage Foundation. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the vxsvc.exe process. The problem affecting the part of the server running on TCP port 2148 is an integer overflow in the function vxveautil.value_binary_unpack where a 32-bit field holds a value that, through some calculation, can be used to create a smaller heap buffer than required to hold user-supplied data. This can be leveraged to cause an overflow of the heap buffer, allowing the attacker to execute arbitrary code under the context of SYSTEM.

VENDOR RESPONSE Symantec has issued an update to correct this vulnerability. More details can be found at:
http://www.symantec.com/business/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=2011&suid=20110815_00
DISCLOSURE TIMELINE
  • 2011-02-17 - Vulnerability reported to vendor
  • 2011-08-16 - Coordinated public release of advisory
CREDIT Luigi Auriemma
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