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Zero Day Initiative Advisory 12-120

Zero Day Initiative Advisory 12-120
Posted Jul 13, 2012
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 12-120 - 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 85 (0x55) and subcode 22 (0x16), 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 to cause a heap buffer overflow. This vulnerability can be leveraged to execute code under the context of the SYSTEM user.

tags | advisory, remote, overflow, arbitrary, tcp
advisories | CVE-2012-0409
SHA-256 | 965c5ab755d2b7879ae5ac4267e6bd5cba51d7a1684cbedcabca3e0569dc73b1

Zero Day Initiative Advisory 12-120

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ZDI-12-120: EMC AutoStart ftAgent Opcode 85 Subcode 22 Parsing Remote Code
Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-120
July 12, 2012

- -- CVE ID:
CVE-2012-0409

- -- 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 12435.
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. 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 85 (0x55) and
subcode 22 (0x16), 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 to cause a heap buffer overflow. This
vulnerability can be leveraged to execute code under the context of the
SYSTEM user.

- -- Vendor Response:
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:
2011-11-22 - Vulnerability reported to vendor
2012-07-12 - Coordinated public release of advisory

- -- Credit:
This vulnerability was discovered by:
* gwslabs.com


- -- 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:

http://www.zerodayinitiative.com

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:
http://www.zerodayinitiative.com/advisories/disclosure_policy/

Follow the ZDI on Twitter:
http://twitter.com/thezdi

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