28946 : Microsoft IE Vector Markup Language (VML) Arbitrary Code Execution
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Info

Last Modified
8 months ago

Percent Complete
100%

Disclosure
Sep 19, 2006

Discovery
Unknown

Dates

Exploit
Sep 19, 2006

Solution
Unknown

Description

 A remote stack-based buffer overflow exists in Microsoft Internet Explorer. The browser's vml rendering engine fails to check the length of a fill parameter on the rect tag resulting in a stack-based buffer overflow. With a specially crafted request that contains a vml graphics, an attacker can cause arbitrary code execution resulting in a loss of integrity.

Classification

 Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Workaround, Patch / RCS
Exploit: Exploit Public
Disclosure: OSVDB Verified, Discovered in the Wild

Technical

 Some recommendations included to disable active scripting or changing the access control list of the vgx.dll. Those recommendations do NOT successfully mitigate the risk.

Solution

 Microsoft has released a patch to address this issue. Additionally, it is possible to correct the flaw by implementing the following workaround(s):

To un-register Vgx.dll, follow these steps:

Click Start, click Run, type "regsvr32 -u "%ProgramFiles%\Common Files\Microsoft Shared\VGX\vgx.dll " (without the quotation marks), and then click OK.

Products
Microsoft Corporation
Watch-list
Internet Explorer
Watch-list
 5
5.5
6
7 RC1

References

Tools & Filters
22449

Snort

 8416

Credit
  • Eric Sites - ericssunbelt-software.com - Sunbelt

CVSSv2 Score

CVSSv2 Base Score = 9.3
Source: nvd.nist.gov | Generated: 2006-09-22 | Disagree?

Access_vector_2 Access_complexity_1 Authentication_2 Confidentiality_impact_2 Integrity_impact_2 Availability_impact_2

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

None found at this time

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