Microsoft Internet Explorer CVE-2011-2019 DLL Loading Arbitrary Code Execution Vulnerability

Bugtraq ID:	50975
Class:	Design Error
CVE:	CVE-2011-2019
Remote:	Yes
Local:	No
Published:	Dec 13 2011 12:00AM
Updated:	Dec 16 2011 12:58AM
Credit:	Andy Cooper of the Citrix Security Team
Vulnerable:	Microsoft Internet Explorer 9 Avaya Messaging Application Server 5.2 Avaya Messaging Application Server 5 Avaya Messaging Application Server 4 Avaya Meeting Exchange - Webportal 0 Avaya Meeting Exchange - Web Conferencing Server 0 Avaya Meeting Exchange - Streaming Server 0 Avaya Meeting Exchange - Recording Server 0 Avaya Meeting Exchange - Client Registration Server 0 Avaya Meeting Exchange 5.0 .0.52 Avaya Meeting Exchange 5.2 SP2 Avaya Meeting Exchange 5.2 SP1 Avaya Meeting Exchange 5.2 Avaya Meeting Exchange 5.1 SP1 Avaya Meeting Exchange 5.1 Avaya Meeting Exchange 5.0 SP2 Avaya Meeting Exchange 5.0 SP1 Avaya Meeting Exchange 5.0 Avaya Communication Server 1000 Telephony Manager 4.0 Avaya Communication Server 1000 Telephony Manager 3.0 Avaya CallPilot 5.0 Avaya CallPilot 4.0 Avaya Aura Conferencing 6.0 Standard
Not Vulnerable:

Microsoft Internet Explorer CVE-2011-2019 DLL Loading Arbitrary Code Execution Vulnerability

Microsoft Internet Explorer is prone to 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.

Microsoft Internet Explorer CVE-2011-2019 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.

Microsoft Internet Explorer CVE-2011-2019 DLL Loading Arbitrary Code Execution Vulnerability

Solution:
The vendor has released an advisory and updates. Please see the references for details.


Microsoft Internet Explorer 9

• Microsoft Cumulative Security Update for Internet Explorer 9 in Windows 7 (KB2618444)
  http://www.microsoft.com/downloads/details.aspx?familyid=ec2046a6-f069 -4f02-9600-7640e57be0a3


• Microsoft Cumulative Security Update for Internet Explorer 9 in Windows 7 x64 Edition (KB2618444)
  http://www.microsoft.com/downloads/details.aspx?familyid=4c773b3d-0ca3 -4b9b-af9a-9d6edcd261f7


• Microsoft Cumulative Security Update for Internet Explorer 9 in Windows Server 2008 (KB2618444)
  http://www.microsoft.com/downloads/details.aspx?familyid=c03e65d6-4f92 -4bc1-94b5-2f0183d0133e


• Microsoft Cumulative Security Update for Internet Explorer 9 in Windows Server 2008 R2 x64 Edition (KB2618444)
  http://www.microsoft.com/downloads/details.aspx?familyid=72c1654e-526f -4ece-b7ad-767a0710e076


• Microsoft Cumulative Security Update for Internet Explorer 9 in Windows Server 2008 x64 Edition (KB2618444)
  http://www.microsoft.com/downloads/details.aspx?familyid=b7a582f3-0a18 -4fbf-9b99-21c664bfd979


• Microsoft Cumulative Security Update for Internet Explorer 9 in Windows Vista (KB2618444)
  http://www.microsoft.com/downloads/details.aspx?familyid=a0b19b35-1d48 -4419-ba3d-66063cc472a7


• Microsoft Cumulative Security Update for Internet Explorer 9 in Windows Vista x64 Edition (KB2618444)
  http://www.microsoft.com/downloads/details.aspx?familyid=c951044b-4596 -462f-bc8f-bdd9d6734297

Microsoft Internet Explorer CVE-2011-2019 DLL Loading Arbitrary Code Execution Vulnerability

References:

• Application DLL Load Hijacking (HD Moore)
  
• Exploiting DLL Hijacking Flaws (hdm)
  
• Microsoft Internet Explorer Homepage (Microsoft)
  
• Microsoft Security Advisory 2269637 Released (Microsoft)
  
• More information about the DLL Preloading remote attack vector (Microsoft)
  
• ASA-2011-396 MS11-099 Update for Internet Explorer (2618444) (Avaya)
  
• Microsoft Security Advisory (2269637) (Microsoft)
  
• Microsoft Security Bulletin MS11-099 (Microsoft)