A1 Website Download 'fwpuclnt.dll' DLL Loading Arbitrary Code Execution Vulnerability

Bugtraq ID:	46374
Class:	Design Error
CVE:
Remote:	Yes
Local:	No
Published:	Feb 15 2011 12:00AM
Updated:	Feb 15 2011 12:00AM
Credit:	d3c0der
Vulnerable:	Microsys A1 Website Downloader 2.3.3
Not Vulnerable:

A1 Website Download 'fwpuclnt.dll' DLL Loading Arbitrary Code Execution Vulnerability

A1 Website Download is prone to an arbitrary-code-execution vulnerability.

An attacker can exploit this issue by enticing a legitimate user to use the vulnerable application to open a file from a network share location that contains a specially crafted Dynamic Link Library (DLL) file.

A1 Website Download 2.3.3 is vulnerable; other versions may also be affected.

A1 Website Download 'fwpuclnt.dll' DLL Loading Arbitrary Code Execution Vulnerability

A general exploit technique has been documented by TheLeader and H.D. Moore for the Metasploit Project; please see the references for more information.

A1 Website Download 'fwpuclnt.dll' DLL Loading Arbitrary Code Execution Vulnerability

Solution:
Currently, we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

A1 Website Download 'fwpuclnt.dll' DLL Loading Arbitrary Code Execution Vulnerability

References:

• Application DLL Load Hijacking (HD Moore)
  
• Exploiting DLL Hijacking Flaws (hdm)
  
• Microsoft Security Advisory 2269637 Released (Microsoft)
  
• More information about the DLL Preloading remote attack vector (Microsoft)
  
• Vendor Homepage (Microsys)
  
• Microsoft Security Advisory (2269637) (Microsoft)