MS01-031: Windows 2000 Telnet Security Rollup (300855)

SUMMARY

Microsoft has released a rollup package for the Windows 2000 Telnet service that corrects the problems that are described in the following Microsoft Knowledge Base articles:

282806 Telnet Service Prevents an Idle Telnet Session from Timing Out

287912 Predictable Named Pipes Could Enable Privilege Elevation with Telnet

299553 Logon Command That Contains a Particular Malformation Causes an Access Violation in the Telnet Service

300901 Telnet Service Allows Logging On to Domain Guest Account

300905 Handle Leak in Telnet Service Causes a Denial-of-Service Vulnerability

300908 Program Running with Normal Privileges Can Terminate a Telnet Session

MORE INFORMATION

To resolve this problem, either obtain the hotfix referenced in this section or Windows 2000 Security Rollup Package 1 (SRP1). For additional information about SRP1, click the article number below to view the article in the Microsoft Knowledge Base:

311401 Windows 2000 Security Rollup Package 1 (SRP1), January 2002

The following file is available for download from the Microsoft Download Center:

Download Q299553_w2k_sp3_x86_en.exe now

Release Date: June 7, 2001

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to Obtain Microsoft Support Files from Online Services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.

The English version of this fix should have the following file attributes or later:

   Date        Time    Version      Size     File name
   -----------------------------------------------------
   05/24/2001  04:14p  5.0.33667.1  186,128  Tlntsvr.exe

For more information about this security vulnerability rollup, see the following Microsoft web site:

http://www.microsoft.com/technet/security/bulletin/ms01-031.asp

For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:

265173 The Datacenter Program and Windows 2000 Datacenter Server Product

For additional information about how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base:

296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot