BID:12160

Microsoft Windows FTP Client Directory Traversal Vulnerability

Info

Microsoft Windows FTP Client Directory Traversal Vulnerability

Bugtraq ID:	12160
Class:	Input Validation Error
CVE:	CVE-2005-2126
Remote:	Yes
Local:	No
Published:	Dec 23 2004 12:00AM
Updated:	Jul 12 2009 09:27AM
Credit:	Discovery is credited to Albert Puigsech Galicia.
Vulnerable:	Nortel Networks Centrex IP Element Manager 8.0 Nortel Networks Centrex IP Element Manager 7.0 Nortel Networks Centrex IP Element Manager 2.5 Nortel Networks Centrex IP Client Manager 8.0 Nortel Networks Centrex IP Client Manager 7.0 Nortel Networks Centrex IP Client Manager 2.5 Nortel Networks Centrex IP Client Manager Microsoft Windows XP Tablet PC Edition SP1 Microsoft Windows XP Professional SP1 Microsoft Windows XP Media Center Edition SP1 Microsoft Windows XP Home SP1 Microsoft Windows Server 2003 Web Edition Microsoft Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Enterprise Edition Itanium 0 Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Datacenter Edition Itanium 0 Microsoft Windows Server 2003 Datacenter Edition Microsoft Internet Explorer 6.0 SP1 Microsoft Internet Explorer 6.0 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server - Microsoft Windows 2000 Server - Microsoft Windows 2000 Server - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services - Microsoft Windows 2000 Terminal Services - Microsoft Windows 2000 Terminal Services - Microsoft Windows 98 - Microsoft Windows 98 - Microsoft Windows 98 - Microsoft Windows 98SE - Microsoft Windows 98SE - Microsoft Windows 98SE - Microsoft Windows ME - Microsoft Windows ME - Microsoft Windows ME - Microsoft Windows NT 4.0 SP6a - Microsoft Windows NT 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Terminal Server 4.0 SP6a - Microsoft Windows NT Terminal Server 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a + Microsoft Windows Server 2003 Datacenter Edition + Microsoft Windows Server 2003 Datacenter Edition + Microsoft Windows Server 2003 Datacenter Edition + Microsoft Windows Server 2003 Datacenter Edition Itanium 0 + Microsoft Windows Server 2003 Datacenter Edition Itanium 0 + Microsoft Windows Server 2003 Enterprise Edition + Microsoft Windows Server 2003 Enterprise Edition + Microsoft Windows Server 2003 Enterprise Edition + Microsoft Windows Server 2003 Enterprise Edition Itanium 0 + Microsoft Windows Server 2003 Enterprise Edition Itanium 0 + Microsoft Windows Server 2003 Enterprise Edition Itanium 0 + Microsoft Windows Server 2003 Standard Edition + Microsoft Windows Server 2003 Standard Edition + Microsoft Windows Server 2003 Standard Edition + Microsoft Windows Server 2003 Web Edition + Microsoft Windows Server 2003 Web Edition + Microsoft Windows Server 2003 Web Edition + Microsoft Windows XP Home + Microsoft Windows XP Home + Microsoft Windows XP Home + Microsoft Windows XP Professional + Microsoft Windows XP Professional + Microsoft Windows XP Professional Avaya Unified Communication Center Avaya S8100 Media Servers R9 Avaya S8100 Media Servers R8 Avaya S8100 Media Servers R7 Avaya S8100 Media Servers R6 Avaya S8100 Media Servers R12 Avaya S8100 Media Servers R11 Avaya S8100 Media Servers R10 Avaya S8100 Media Servers 0 + Microsoft Windows 2000 Server + Microsoft Windows NT Server 4.0 SP6a Avaya S3400 Message Application Server 0 + Microsoft Windows 2000 Server Avaya IP600 Media Servers R9 Avaya IP600 Media Servers R8 Avaya IP600 Media Servers R7 Avaya IP600 Media Servers R6 Avaya IP600 Media Servers R12 Avaya IP600 Media Servers R11 Avaya IP600 Media Servers R10 Avaya IP600 Media Servers Avaya DefinityOne Media Servers R9 Avaya DefinityOne Media Servers R8 Avaya DefinityOne Media Servers R7 Avaya DefinityOne Media Servers R6 Avaya DefinityOne Media Servers R12 Avaya DefinityOne Media Servers R11 Avaya DefinityOne Media Servers R10 Avaya DefinityOne Media Servers

Not Vulnerable:	Microsoft Windows XP Tablet PC Edition SP2 Microsoft Windows XP Professional x64 Edition Microsoft Windows XP Professional SP2 Microsoft Windows XP Media Center Edition SP2 Microsoft Windows XP Home SP2 Microsoft Windows Server 2003 Web Edition SP1 Microsoft Windows Server 2003 Standard x64 Edition Microsoft Windows Server 2003 Standard Edition SP1 Microsoft Windows Server 2003 Enterprise x64 Edition Microsoft Windows Server 2003 Enterprise Edition Itanium SP1 Microsoft Windows Server 2003 Enterprise Edition SP1 Microsoft Windows Server 2003 Datacenter x64 Edition Microsoft Windows Server 2003 Datacenter Edition Itanium SP1 Microsoft Windows Server 2003 Datacenter Edition SP1 Microsoft Windows ME Microsoft Windows 98SE Microsoft Windows 98 Microsoft Windows 2000 Server SP4 Microsoft Windows 2000 Professional SP4 Microsoft Windows 2000 Datacenter Server SP4 Microsoft Windows 2000 Advanced Server SP4

Discussion

Microsoft Windows FTP Client Directory Traversal Vulnerability

Microsoft Windows FTP client is reported prone to a directory traversal vulnerability. This issue is due to a failure of the application to properly sanitize user-supplied input. A remote attacker may place files in an arbitrary location on a vulnerable computer.

This can lead to data corruption or creation of potentially malicious files on a vulnerable computer. Once the file is placed on the computer, the attacker can employ various methods to execute the file or use this issue to aid in further attacks against a vulnerable computer. This would occur in the context of the user running Internet Explorer.

Exploit / POC

Microsoft Windows FTP Client Directory Traversal Vulnerability

A proof of concept is available:

/data/vulnerabilities/exploits/20051013.ms05-044.c
/data/vulnerabilities/exploits/ie_ftp.c

Solution / Fix

Microsoft Windows FTP Client Directory Traversal Vulnerability

Solution:
Microsoft has released updates to address this vulnerability.

Avaya has released advisory ASA-2005-214 to state which Avaya products are affected by The October 2005 release of Microsoft Windows security updates. Please see the referenced advisory for further information.

Nortel Networks has released a technical support bulletin (2005006318) regarding this and other issues for their Centrex IP Client Manager (CICM). They report the vulnerabilities will be fixed in the upcoming 2.5, 7.0 and 8.0 maintenance releases. Please see the referenced bulletin for further information.

Microsoft Windows Server 2003 Datacenter Edition