Content
(MS06-050) Microsoft Windows Hyperlink Object Buffer Overflow (KB920670)
- Type
- Buffer Overflow
- Impact of exploitation
- Remote Code Execution
- User Interaction
- user interaction is needed
- Attack Vector
- Website or e-mail with malicious content
- Rating
- High
- CVE reference
- CVE-2006-3086,
- Vendor Status
- Responded and patched
- Vulnerable systems
- Windows XP SP0 - SP2,
- Windows 2003 SP0 - SP1,
- Windows 2000 SP4,
- Summary
- A buffer overflow vulnerability exists in Microsoft Windows that may allow for code execution when clicking a malicious hyperlink within a malformed document.
Tab Navigation
Description
Microsoft Windows is an industry standard operating system. A code execution vulnerability is present in some versions of Microsoft Windows. A boundary error in the DLL that processes hyperlinks, hlink.dll, has been reported. An attacker would need to convince the victim to click a malicious hyperlink in an crafted document. A proof-of-concept is publicly available.
McAfee Product Mitigation & Recommendations
Recommendations
Download and install the patch available from Microsoft (KB920670): http://www.microsoft.com/technet/security/bulletin/MS06-050.mspx
McAfee Product Mitigation
McAfee Foundstone
- Signature:
- (MS06-050) Microsoft Windows Hyperlink Object Buffer Overflow (KB920670)
- Signature identifier:
- 4429
- Release date:
- 6/21/2006
- First released in:
- Protected by Foundstone
McAfee Intrushield
- Signature:
- Microsoft Office Malformed Data Exploit, Microsoft Office Malformed Data Vulnerability
- Signature identifier:
- 0x4022AB00
- Release date:
- 7/11/2006
- First released in:
- sigset(s) 2.1.44, 3.1.17
McAfee Intrushield
- Signature:
- Microsoft Office Malformed Data Exploit, Microsoft Office Malformed Data Vulnerability
- Signature identifier:
- 0x4040B300
- Release date:
- 7/11/2006
- First released in:
- sigset(s) 1.9.61, 1.8.78
McAfee Host IPS
- Signature:
- Generic Buffer Overflow protection
- Signature identifier:
- 428
- Release date:
- 8/24/2000
- First released in:
- 2.0
McAfee VirusScan Enterprise 8.0i (VSE8.0i) / Managed Virus Scan (MVS) Buffer Overflow Protection
- Signature:
- Buffer Overflow Protection
- Release date:
- 8/30/2004
- First released in:
- build 131
McAfee VirusScan Enterprise 8.5i (VSE8.5i) /Total Protection for Small Business (ToPS SB) Buffer Overflow Protection
Out of the box, VSE8.5i and ToPS SB protect against many buffer overflow exploits. McAfee Avert Labs will continue to update our coverage, as needed, as new exploit vectors are discovered and as new threats emerge.
- Signature:
- Buffer Overflow Protection
- Release date:
- 11/29/2006
- First released in:
- build 354
McAfee Anti-Virus protection
- Signature:
- Exploit-MSExcel.b.gen
- Release date:
- 6/26/2006
- First released in:
- DAT 4793
Additional Resources
Microsoft Office Long Link Buffer Overflow Vulnerability
http://secunia.com/advisories/20748/
Information on Proof of Concept posting about hlink.dll
http://blogs.technet.com/msrc/archive/2006/06/20/437826.aspx
Microsoft Security Bulletin: Vulnerability in Microsoft Windows Hyperlink Object Library Could Allow Remote Code Execution (920670)
http://www.microsoft.com/technet/security/bulletin/MS06-050.mspx
TSRT-06-10: Microsoft HLINK.DLL Hyperlink Object Library Buffer Overflow Vulnerability
http://www.tippingpoint.com/security/advisories/TSRT-06-10.html
All Information
Timeline -
8/8/2006
Vendor has provided a patch.
8/8/2006
Vulnerability information has been publicly disclosed.
7/6/2006
Exploit code has been released.
7/6/2006
A proof of concept has been released.
6/22/2006
A proof of concept has been released.
6/20/2006
Vulnerability information has been publicly disclosed.
6/20/2006
Vendor has acknowledged vulnerability
6/19/2006
A proof of concept has been released.
Description -
Microsoft Windows is an industry standard operating system. A code execution vulnerability is present in some versions of Microsoft Windows. A boundary error in the DLL that processes hyperlinks, hlink.dll, has been reported. An attacker would need to convince the victim to click a malicious hyperlink in an crafted document. A proof-of-concept is publicly available.
McAfee Product Mitigation & Recommendations
Recommendations -
Download and install the patch available from Microsoft (KB920670): http://www.microsoft.com/technet/security/bulletin/MS06-050.mspx
McAfee Product Mitigation
McAfee Foundstone
- Signature:
- (MS06-050) Microsoft Windows Hyperlink Object Buffer Overflow (KB920670)
- Signature identifier:
- 4429
- Release date:
- 6/21/2006
- First released in:
- Protected by Foundstone
McAfee Intrushield
- Signature:
- Microsoft Office Malformed Data Exploit, Microsoft Office Malformed Data Vulnerability
- Signature identifier:
- 0x4022AB00
- Release date:
- 7/11/2006
- First released in:
- sigset(s) 2.1.44, 3.1.17
McAfee Intrushield
- Signature:
- Microsoft Office Malformed Data Exploit, Microsoft Office Malformed Data Vulnerability
- Signature identifier:
- 0x4040B300
- Release date:
- 7/11/2006
- First released in:
- sigset(s) 1.9.61, 1.8.78
McAfee Host IPS
- Signature:
- Generic Buffer Overflow protection
- Signature identifier:
- 428
- Release date:
- 8/24/2000
- First released in:
- 2.0
McAfee VirusScan Enterprise 8.0i (VSE8.0i) / Managed Virus Scan (MVS) Buffer Overflow Protection
- Signature:
- Buffer Overflow Protection
- Release date:
- 8/30/2004
- First released in:
- build 131
McAfee VirusScan Enterprise 8.5i (VSE8.5i) /Total Protection for Small Business (ToPS SB) Buffer Overflow Protection
Out of the box, VSE8.5i and ToPS SB protect against many buffer overflow exploits. McAfee Avert Labs will continue to update our coverage, as needed, as new exploit vectors are discovered and as new threats emerge.
- Signature:
- Buffer Overflow Protection
- Release date:
- 11/29/2006
- First released in:
- build 354
McAfee Anti-Virus protection
- Signature:
- Exploit-MSExcel.b.gen
- Release date:
- 6/26/2006
- First released in:
- DAT 4793
Additional Resources
Additional Resources -
Microsoft Office Long Link Buffer Overflow Vulnerability
http://secunia.com/advisories/20748/
Information on Proof of Concept posting about hlink.dll
http://blogs.technet.com/msrc/archive/2006/06/20/437826.aspx
Microsoft Security Bulletin: Vulnerability in Microsoft Windows Hyperlink Object Library Could Allow Remote Code Execution (920670)
http://www.microsoft.com/technet/security/bulletin/MS06-050.mspx
TSRT-06-10: Microsoft HLINK.DLL Hyperlink Object Library Buffer Overflow Vulnerability
http://www.tippingpoint.com/security/advisories/TSRT-06-10.html
