ZDI-09-009: EMC AutoStart Backbone Engine Trusted Pointer Code Execution Vulnerability Jan 23 2009 08:08PM
zdi-disclosures 3com com
ZDI-09-009: EMC AutoStart Backbone Engine Trusted Pointer Code Execution



January 23, 2009

-- Affected Vendors:


-- Affected Products:

EMC AutoStart

-- TippingPoint(TM) IPS Customer Protection:

TippingPoint IPS customers have been protected against this

vulnerability by Digital Vaccine protection filter ID 6412.

For further product information on the TippingPoint IPS, visit:


-- Vulnerability Details:

This vulnerability allows remote attackers to execute arbitrary code on

systems with vulnerable installations of EMC AutoStart. Authentication

is not required to exploit this vulnerability.

The specific flaw exists within the Backbone service (ftbackbone.exe)

which listens by default on TCP port 8042. The process trusts a DWORD

value from incoming packets which it arbitrarily calls. Exploitation of

this issue leads to code execution under the context of the SYSTEM


-- Vendor Response:

EMC states:

Customers who are using older versions are advised to upgrade to EMC

AutoStart 5.3 SP2

For EMC AutoStart 5.3. SP2 Software navigate to the following location:

Powerlink > Support > Software Downloads and Licensing > Downloads A-B >


-- Disclosure Timeline:

2008-08-26 - Vulnerability reported to vendor

2009-01-23 - Coordinated public release of advisory

-- Credit:

This vulnerability was discovered by:

* Manuel Santamarina Suarez

-- About the Zero Day Initiative (ZDI):

Established by TippingPoint, The Zero Day Initiative (ZDI) represents

a best-of-breed model for rewarding security researchers for responsibly

disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research

through the ZDI can find more information and sign-up at:


The ZDI is unique in how the acquired vulnerability information is

used. TippingPoint does not re-sell the vulnerability details or any

exploit code. Instead, upon notifying the affected product vendor,

TippingPoint provides its customers with zero day protection through

its intrusion prevention technology. Explicit details regarding the

specifics of the vulnerability are not exposed to any parties until

an official vendor patch is publicly available. Furthermore, with the

altruistic aim of helping to secure a broader user base, TippingPoint

provides this vulnerability information confidentially to security

vendors (including competitors) who have a vulnerability protection or

mitigation product.

Our vulnerability disclosure policy is available online at:


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