Advisory Details

July 12th, 2012

EMC AutoStart ftAgent Opcode 50 Subcode 04 Parsing Remote Code Execution Vulnerability

ZDI-12-116
ZDI-CAN-1442

CVE ID CVE-2012-0409
CVSS SCORE 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS EMC
AFFECTED PRODUCTS AutoStart
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12435. 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 EMC Autostart. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the ftAgent.exe service, which listens by default on TCP port 8045. When handling messages with opcode 50 (0x32) and subcode 04, the process performs arithmetic on an unvalidated user-supplied value used to determine the size of a new heap buffer, allowing a potential integer wrap. This user supplied value is also used to determine how many times a loop will parse the data into the buffer. Combined, the vulnerable code will allow for the heap to be corrupted. This vulnerability can be leveraged to execute code under the context of the SYSTEM user.

ADDITIONAL DETAILS EMC has issued an update to correct this vulnerability. More details can be found at:
http://www.securityfocus.com/archive/1/522835/30/0/threaded
DISCLOSURE TIMELINE
  • 2011-11-21 - Vulnerability reported to vendor
  • 2012-07-12 - Coordinated public release of advisory
CREDIT gwslabs.com
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