ZDI-12-160 : EMC AutoStart ftAgent Opcode 0x14 Subcode 0x7F8- Parsing Remote Code Execution Vulnerability

From: ZDI Disclosures <zdi-disclosures@tippingpoint.com>
To: 'full-disclosure@lists.grok.org.uk' <full-disclosure@lists.grok.org.uk>,'bugtraq@securityfocus.com' <bugtraq@securityfocus.com>
Cc: ZDI Disclosures <zdi-disclosures@hp.com>
Subject: ZDI-12-160 : EMC AutoStart ftAgent Opcode 0x14 Subcode 0x7F8- Parsing Remote Code Execution Vulnerability

Hash: SHA1

ZDI-12-160 : EMC AutoStart ftAgent Opcode 0x14 Subcode 0x7F8 Parsing Remote
Code Execution Vulnerability
August 22, 2012

- -- CVE ID:

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

- -- 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 12435.
For further product information on the TippingPoint IPS, visit:


- -- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of the EMC Autostart ftAgent, which is deployed on
machines managed by EMC Autostart by default. Authentication is not
required to exploit this vulnerability.

The specific flaw exists within the parsing routines for op-codes used by
EMC Autostart ftAgent's proprietary network protocol. This ftAgent.exe
service listens on TCP port 8045, and performs arithmetic for memory size
calculation using values read from the network without validation. This
arithmetic is susceptible to integer overflow, causing the memory
allocation to be undersized, ultimately allowing for heap-based memory
corruption. An attacker can exploit this condition to gain remote code
execution as user SYSTEM.

- -- Vendor Response:
EMC has issued an update to correct this vulnerability. More details can be
found at:

- -- Disclosure Timeline:
2012-01-12 - Vulnerability reported to vendor
2012-08-22 - 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.

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