Microsoft Windows FTP Client Filename Validation Vulnerability - Advisories

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Microsoft Windows FTP Client Filename Validation Vulnerability

Secunia Advisory:	SA17163
Release Date:	2005-10-11
Last Update:	2005-11-21

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

OS:	Microsoft Windows Server 2003 Datacenter Edition Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Web Edition Microsoft Windows XP Embedded Microsoft Windows XP Home Edition Microsoft Windows XP Professional

Software:	Microsoft Internet Explorer 6.x

CVE reference:	CVE-2005-2126 (Secunia mirror)

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Description: A vulnerability has been reported in Microsoft Windows, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to an error in the Windows FTP client in validating the name of a downloaded file. This can be exploited to write files into arbitrary locations on an affected system. Successful exploitation requires that the user is e.g. tricked into downloading a file with a specially-crafted filename from an FTP server. The vulnerability may be related to: SA13704 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, using the Network Software Inspector. Solution: Apply patches. Microsoft Windows XP (requires Service Pack 1): http://www.microsoft.com/downloads/de...=351C63A3-AB62-418D-8678-3AF791D73A29 Microsoft Windows XP Embedded (with SP2): http://www.microsoft.com/downloads/de...=e7b6d199-7607-44a8-96fd-5a2386427bd9 Microsoft Windows XP Embedded (with SP1): http://www.microsoft.com/downloads/de...=47633799-2103-4fc2-b63d-a9581a2d2f2d Microsoft Windows Server 2003: http://www.microsoft.com/downloads/de...=4940CF64-E1FD-4E88-8980-3106BE03BF12 Microsoft Windows Server 2003 (Itanium): http://www.microsoft.com/downloads/de...=B715147B-DE2D-4F14-9548-AFF18641D0F3 Internet Explorer 6 Service Pack 1 on Microsoft Windows 2000 (requires Service Pack 4): http://www.microsoft.com/downloads/de...=FCEA60E5-9EA8-4216-BA4D-C85054892DBB Changelog: 2005-10-14: Added link to US-CERT vulnerability note. 2005-11-21: Added patch information for Windows XP Embedded. Original Advisory: MS05-044 (KB905495): http://www.microsoft.com/technet/security/Bulletin/MS05-044.mspx Other References: SA13704: http://secunia.com/advisories/13704 US-CERT VU#415828: http://www.kb.cert.org/vuls/id/415828



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.

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