Steam 'steamgamesupport.dll' DLL Loading Arbitrary Code Execution Vulnerability

Bugtraq ID:	42803
Class:	Design Error
CVE:
Remote:	Yes
Local:	No
Published:	Aug 27 2010 12:00AM
Updated:	Aug 27 2010 12:00AM
Credit:	storm
Vulnerable:	Valvesoftware Steam 0 - Microsoft Windows 2000 Professional - Microsoft Windows 95 - Microsoft Windows 98 - Microsoft Windows 98SE - Microsoft Windows ME - Microsoft Windows NT 4.0
Not Vulnerable:

Steam 'steamgamesupport.dll' DLL Loading Arbitrary Code Execution Vulnerability

Steam 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.

Steam 'steamgamesupport.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.

Steam 'steamgamesupport.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)
  
• New DLL Hijacking Exploits (many!) (Matt)
  
• Steam Homepage (Valve Corporation)
  
• Microsoft Security Advisory (2269637) (Microsoft)