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Category:   OS (Microsoft)  >   Windows Remote Installation Service Vendors:   Microsoft
Windows Remote Installation Service TFTP Server Lets Remote Users Overwrite Files to Execute Arbitrary Code
SecurityTracker Alert ID:  1017368
SecurityTracker URL:  http://securitytracker.com/id/1017368
CVE Reference:   CVE-2006-5584   (Links to External Site)
Date:  Dec 12 2006
Impact:   Execution of arbitrary code via network, Modification of system information, Modification of user information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2000 SP4
Description:   A vulnerability was reported in Windows Remote Installation Service. A remote user can overwrite operating system files to execute arbitrary code on the target system.

The Remote Installation Service (RIS) includes a TFTP service. A remote user can connect to the service and overwrite existing operating system files or upload arbitrary files. As a result, a remote user can modify the operating system and cause arbitrary code to be executed at a later time on the target system.

The Remote Install Service is not installed by default.

Microsoft credits Nicolas Ruff for reporting this vulnerability.

Impact:   A remote user can modify files to execute arbitrary code on the target system.
Solution:   The vendor has issued the following fix:

Microsoft Windows 2000 Service Pack 4:

http://www.microsoft.com/downloads/details.aspx?FamilyId=0ed62db9-4534-4f27-a49e-020c7a7d69e0"

A restart is required.

The Microsoft advisory is available at:

http://www.microsoft.com/technet/security/bulletin/ms06-077.mspx

Vendor URL:  www.microsoft.com/technet/security/bulletin/ms06-077.mspx (Links to External Site)
Cause:   Boundary error

Message History:   None.


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