ZDI-11-273: EMC Autostart Domain Name Logging Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-273

August 23, 2011

-- CVE ID:
CVE-2011-2735

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

-- Affected Vendors:
EMC

-- Affected Products:
EMC AutoStart

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 11452. 
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 EMC AutoStart High Availability.
Authentication is not required to exploit this vulnerability. 

The specific flaw exists within the packet error handling of the
application. When building an error message to log an error, the
application will use a user-supplied string from the packet as an
argument to a function containing a format string. The result of this
function is written to a statically sized buffer located on the stack.
This will lead to code execution under the context of the service.

-- Vendor Response:
EMC has issued an update to correct this vulnerability. More
details can be found at:
http://www.securityfocus.com/archive/1/519371

-- Disclosure Timeline:
2011-01-21 - Vulnerability reported to vendor
2011-08-23 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Sebastian Apelt (www.siberas.de)

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