BID:18500

Microsoft HLINK.DLL Link Memory Corruption Vulnerability

CVE-2006-3086 |

Info

Microsoft HLINK.DLL Link Memory Corruption Vulnerability

Bugtraq ID:	18500
Class:	Boundary Condition Error
CVE:	CVE-2006-3086
Remote:	Yes
Local:	No
Published:	Jun 19 2006 12:00AM
Updated:	Aug 09 2006 12:55AM
Credit:	The discovery of this issue is credited to kcope <[email protected]>. Microsoft credits Pedram Amini of the TippingPoint Security Research Team for reporting this issue.
Vulnerable:	Microsoft Windows XP Tablet PC Edition SP2 Microsoft Windows XP Tablet PC Edition SP1 Microsoft Windows XP Tablet PC Edition Microsoft Windows XP Professional x64 Edition Microsoft Windows XP Professional SP2 Microsoft Windows XP Professional SP1 Microsoft Windows XP Professional Microsoft Windows XP Media Center Edition SP2 Microsoft Windows XP Media Center Edition SP1 Microsoft Windows XP Media Center Edition Microsoft Windows XP Home SP2 Microsoft Windows XP Home SP1 Microsoft Windows XP Home Microsoft Windows XP Gold 0 Microsoft Windows XP Embedded SP1 Microsoft Windows XP Embedded Microsoft Windows XP 64-bit Edition Version 2003 SP1 Microsoft Windows XP 64-bit Edition Version 2003 Microsoft Windows XP 64-bit Edition SP1 Microsoft Windows XP 64-bit Edition Microsoft Windows XP 0 Microsoft Windows Server 2003 Web Edition SP1 Microsoft Windows Server 2003 Web Edition Microsoft Windows Server 2003 Standard x64 Edition Microsoft Windows Server 2003 Standard Edition SP1 Microsoft Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Enterprise x64 Edition Microsoft Windows Server 2003 Enterprise Edition Itanium SP1 Microsoft Windows Server 2003 Enterprise Edition Itanium 0 Microsoft Windows Server 2003 Enterprise Edition SP1 Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Datacenter x64 Edition Microsoft Windows Server 2003 Datacenter Edition Itanium SP1 Microsoft Windows Server 2003 Datacenter Edition Itanium 0 Microsoft Windows Server 2003 Datacenter Edition SP1 Microsoft Windows Server 2003 Datacenter Edition Microsoft Windows 2000 Server SP4 Microsoft Windows 2000 Server SP3 Microsoft Windows 2000 Server SP2 Microsoft Windows 2000 Server SP1 Microsoft Windows 2000 Server + Avaya DefinityOne Media Servers + Avaya IP600 Media Servers + Avaya S3400 Message Application Server 0 + Avaya S8100 Media Servers 0 Microsoft Windows 2000 Professional SP4 Microsoft Windows 2000 Professional SP3 Microsoft Windows 2000 Professional SP2 Microsoft Windows 2000 Professional SP1 Microsoft Windows 2000 Professional Microsoft Windows 2000 Datacenter Server SP4 Microsoft Windows 2000 Datacenter Server SP3 Microsoft Windows 2000 Datacenter Server SP2 Microsoft Windows 2000 Datacenter Server SP1 Microsoft Windows 2000 Datacenter Server Microsoft Windows 2000 Advanced Server SP4 Microsoft Windows 2000 Advanced Server SP3 Microsoft Windows 2000 Advanced Server SP2 Microsoft Windows 2000 Advanced Server SP1 Microsoft Windows 2000 Advanced Server

Not Vulnerable:

Discussion

Microsoft HLINK.DLL Link Memory Corruption Vulnerability

Microsoft HLINK.DLL is prone to a memory-corruption vulnerability. This issue is due to the library's failure to properly bounds-check user-supplied input before copying it to an insufficiently sized memory buffer.

Successfully exploiting this issue allows attackers to execute arbitrary machine code in the context of applications that use the affected library. This facilitates the remote compromise of affected computers. Failed exploit attempts will likely crash targeted applications.

This issue has been shown to be exploitable through Microsoft Office files. Other applications using the affected library may also be affected.

Exploit / POC

Microsoft HLINK.DLL Link Memory Corruption Vulnerability

The following exploits are available to demonstrate this issue:

/data/vulnerabilities/exploits/excelsexywarez.pl
/data/vulnerabilities/exploits/18500.c
/data/vulnerabilities/exploits/18500.pl
/data/vulnerabilities/exploits/excel_hlink_exp.c
/data/vulnerabilities/exploits/word-hlink.pl

Solution / Fix

Microsoft HLINK.DLL Link Memory Corruption Vulnerability

Solution:
Microsoft has released a security bulletin to address this issue. Please see the attached security bulletin for details.

Microsoft Windows Server 2003 Datacenter Edition SP1