Skype 'wab32.dll' DLL Loading Arbitrary Code Execution Vulnerability

Bugtraq ID:	42735
Class:	Design Error
CVE:	CVE-2010-3136
Remote:	Yes
Local:	No
Published:	Aug 25 2010 12:00AM
Updated:	Aug 25 2010 12:00AM
Credit:	Glafkos Charalambous
Vulnerable:	Skype Technologies Skype 4.2 169 Skype Technologies Skype 4.2 155 Skype Technologies Skype 4.2 152 Skype Technologies Skype 4.1 .179 Skype Technologies Skype 4.1 .179 Skype Technologies Skype 4.1 .166 Skype Technologies Skype 4.1 .141 Skype Technologies Skype 4.1 .136 Skype Technologies Skype 4.1 .130
Not Vulnerable:

Skype 'wab32.dll' DLL Loading Arbitrary Code Execution Vulnerability

Skype is prone to a vulnerability that lets attackers execute arbitrary code.

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.

Skype 'wab32.dll' DLL Loading Arbitrary Code Execution Vulnerability

The following exploit code is available:

• /data/vulnerabilities/exploits/42735.c

Skype 'wab32.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].

Skype 'wab32.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)
  
• Skype Homepage (Skype Technologies)
  
• Microsoft Security Advisory (2269637) (Microsoft)