ZDI-11-262: Symantec Veritas Storage Foundation vxsvc.exe Unicode String Parsing Remote Code Execution Vulnerability

ZDI-11-262: Symantec Veritas Storage Foundation vxsvc.exe Unicode String Parsing Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-262

August 16, 2011

– CVE ID:
CVE-2011-0547

– CVSS:
10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)

– Affected Vendors:
Symantec

– Affected Products:
Symantec Veritas Storage Foundation

– TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 11573.
For further product information on the TippingPoint IPS, visit:

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:
This vulnerability was discovered by:
* Luigi Auriemma

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