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Microsoft Internet Information Services ASP Code Buffer Overflow Advisory Available in Danish 

Secunia Advisory: SA21006  
Release Date: 2006-07-11
Last Update: 2006-12-22

Critical:
Moderately critical
Impact: System access
Security Bypass
Where: From remote
Solution Status: Vendor Patch

Software:Microsoft Internet Information Services (IIS) 5.x
Microsoft Internet Information Services (IIS) 6

CVE reference:CVE-2006-0026 (Secunia mirror)
CVE-2006-6578 (Secunia mirror)
CVE-2006-6579 (Secunia mirror)

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Description:
Brett Moore has reported a vulnerability in Microsoft Internet Information Services, which can be exploited by malicious users to compromise a vulnerable system.

The vulnerability is caused due to a boundary error in asp.dll when handling ASP code. This can be exploited to cause a stack-based buffer overflow by placing ASP code that attempts to include a file with an overly long name (longer than 260 bytes).

Successful exploitation allows bypassing any security restrictions enforced by ASP or execution of API's with no ASP equivalent, but requires permissions to upload ASP code to a web folder.

Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, scan using the Network Software Inspector.

Solution:
Apply patches.

Microsoft Windows 2000 (requires SP4):
http://www.microsoft.com/downloads/de...=c917d6da-da2d-402c-a870-1de3cbd21ebf

Microsoft Windows XP Professional (requires SP1 or SP2:
http://www.microsoft.com/downloads/de...=55d3ca3a-97fc-4e22-8ecc-9416ebc993c4

Microsoft Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=4e19b792-7505-4453-b460-5a16915443db

Microsoft Windows Server 2003 (with or without SP1):
http://www.microsoft.com/downloads/de...=c5e274a8-f962-4944-8878-6b88b1592bbf

Microsoft Windows Server 2003 (Itanium) (with or without SP1):
http://www.microsoft.com/downloads/de...=e2dc245e-d0f3-41b9-b090-68a2118001cb

Microsoft Windows Server 2003 x64 Edition family:
http://www.microsoft.com/downloads/de...=f29c886d-b896-4fcf-a22b-2c1a53b1a9eb

Provided and/or discovered by:
Brett Moore, Security-Assessment.

Changelog:
2006-07-12: Added link to US-CERT vulnerability note.
2006-07-19: Added additional information from Security-Assessment.
2006-12-22: Added CVE reference.

Original Advisory:
MS06-034 (KB917537):
http://www.microsoft.com/technet/security/Bulletin/MS06-034.mspx

Security-Assessment:
http://www.security-assessment.com/Ad....DLL_Include_File_Buffer_Overflow.pdf

Other References:
US-CERT VU#395588:
http://www.kb.cert.org/vuls/id/395588



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

15 Related Secunia Security Advisories, displaying 10

1. Microsoft Internet Information Services Code Execution Vulnerability
2. Microsoft Internet Information Services Privilege Escalation
3. Microsoft Windows XP IIS URL Request Handling Vulnerability
4. Microsoft IIS "500-100.asp" Source Code Disclosure
5. Microsoft Windows WebDAV XML Message Handler Denial of Service
6. Microsoft IIS Inappropriate Cookie Handling Error
7. Microsoft Internet Information Services Track Log Bypass
8. Microsoft Frontpage Server Extensions Remotely Exploitable Buffer Overflow
9. Microsoft Windows Media Services Remote System Access
10. Internet Information Server/Services Multiple Vulnerabilities

Show all related advisories


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