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Insecure Library Loading
Highly critical

GIGABYTE Dldrv2 ActiveX Control Multiple Vulnerabilities

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Release Date:  2010-07-15    Views:  3,649

Secunia Advisory SA40161

Where:

From remote

Impact:

System access

Solution Status:

Unpatched

CVE Reference(s):

Description


Secunia Research has discovered some vulnerabilities in GIGABYTE Dldrv2 ActiveX Control, which can be exploited by malicious people to compromise a user's system.

1) The unsafe method "dl()" allows automatically downloading and executing an arbitrary file.

2) Combined usage of the unsafe methods "SetDLInfo()" and "Bdl()" allows automatically downloading an arbitrary file to an arbitrary location on the user's system.

3) Missing input validation of the "item" argument passed to the "SetDLInfo()" method can be exploited via array-indexing errors to overwrite memory and execute arbirtary code.

The vulnerabilities are confirmed in version 1.4.206.11. Other versions may also be affected.


Solution:
Set the kill-bit for the affected ActiveX control.

Provided and/or discovered by:
Carsten Eiram, Secunia Research.

Original Advisory:
Secunia Research:
http://secunia.com/secunia_research/2010-85/
http://secunia.com/secunia_research/2010-86/

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: GIGABYTE Dldrv2 ActiveX Control Multiple Vulnerabilities

User Message
hegefer RE: GIGABYTE Dldrv2 ActiveX Control Multiple Vulnerabilities
Member 17th Jan, 2011 20:32
Score: -3
Posts: 2
User Since: 30th Apr 2009
System Score: N/A
Location: HU
Last edited on 17th Jan, 2011 20:32
It is stated above:"Solution
Set the kill-bit for the affected ActiveX control."
My question is: How can I do that? I'm a simple user, not an expert.
Thx (if I get an answer)
Was this reply relevant?
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ddmarshall RE: GIGABYTE Dldrv2 ActiveX Control Multiple Vulnerabilities
Dedicated Contributor 17th Jan, 2011 21:04
Score: 1172
Posts: 940
User Since: 8th Nov 2008
System Score: 100%
Location: UK
Killbits are usually set through a Microsoft Update at the request of the vendor.

In the unlikely event that you want to try it yourself, the information is here:
http://support.microsoft.com/kb/240797

An in depth explanation:
http://blogs.technet.com/b/srd/archive/2008/02/06/...
http://blogs.technet.com/b/srd/archive/2008/02/07/...
http://blogs.technet.com/b/srd/archive/2008/02/08/...

This is the downloader that GigaByte use to download BIOS updates. As you don't need it most of the time, rather than messing with killbits I would either:
1. Uninstall it if it appears in Add/Remove Programs
2. Use Manage Addons in Internet Explorer Tools to disable iit

--
This answer is provided “as-is.” You bear the risk of using it.
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hegefer

RE: GIGABYTE Dldrv2 ActiveX Control Multiple Vulnerabilities
[+]
This reply has been minimised due to a negative Relevancy Score.

mogs

RE: GIGABYTE Dldrv2 ActiveX Control Multiple Vulnerabilities
[+]
This reply has been minimised due to a negative Relevancy Score.

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