MS05-049 -- Vulnerabilities in Windows Shell Could Allow Remote Code Execution (PC1-2005-1043)

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             AUSCERT External Security Bulletin Redistribution

                         ESB-2005.0804 -- MS05-049
    Vulnerabilities in Windows Shell Could Allow Remote Code Execution
                              12 October 2005

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        AusCERT Security Bulletin Summary
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Product:           Microsoft Windows 2000 SP4 and prior
                   Microsoft Windows XP SP2 and prior
                   Microsoft Windows Server 2003 SP1 and prior
Publisher:         Microsoft
Operating System:  Windows
Impact:            Execute Arbitrary Code/Commands
Access:            Remote/Unauthenticated
CVE Names:         CAN-2005-2122 CAN-2005-2118 CAN-2005-2117

Original Bulletin: http://www.microsoft.com/technet/security/bulletin/MS05-049.mspx

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MS05-049 - Vulnerabilities in Windows Shell Could Allow Remote Code
           Execution (900725)

  - Affected Software: 
    - Windows 2000 Service Pack 4
    - Windows XP Service Pack 1
    - Windows XP Service Pack 2
    - Windows XP 64-Bit Edition Service Pack 1 (Itanium)
    - Windows XP 64-Bit Edition Version 2003 (Itanium)
    - Windows XP Professional x64 Edition
    - Windows Server 2003
    - Windows Server 2003 Service Pack 1
    - Windows Server 2003 for Itanium-based Systems 
    - Windows Server 2003 with SP1 for Itanium-based Systems 
    - Windows Server 2003 x64 Edition

    - Impact: Remote Code Execution
    - Version Number: 1.0  

Full MS05-049 advisory:
http://www.microsoft.com/technet/security/bulletin/MS05-049.mspx


Vulnerability Details:

Shell Vulnerabilities - CAN-2005-2122 and CAN-2005-2118:

Two remote code execution vulnerabilities exists in Windows because of the 
way that it handles the .lnk file name extension. By persuading a user to 
open an .lnk file that has specially-crafted properties an attacker could 
execute code on an affected system.


Web View Script Injection Vulnerability - CAN-2005-2117:

A remote code execution vulnerability exists in the way that Web View in 
Windows Explorer handles certain HTML characters in preview fields. By 
persuading a user to preview a malicious file, an attacker could execute 
code. However, user interaction is required to exploit this vulnerability.


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