Microsoft Windows 2000 Telnet Multiple Sessions DoS Vulnerability

BID:2843

Info

Microsoft Windows 2000 Telnet Multiple Sessions DoS Vulnerability

Bugtraq ID: 2843
Class: Failure to Handle Exceptional Conditions
CVE:
Remote: Yes
Local: No
Published: Jun 07 2001 12:00AM
Updated: Jun 07 2001 12:00AM
Credit: Posted in a Microsoft Security Bulletin MS01-031 on June 7, 2001.
Vulnerable: Microsoft Windows 2000 Server SP2
Microsoft Windows 2000 Server SP1
Microsoft Windows 2000 Server
+ Avaya DefinityOne Media Servers
+ Avaya IP600 Media Servers
+ Avaya S3400 Message Application Server 0
 + Avaya S8100 Media Servers 0
 Microsoft Windows 2000 Professional SP2
Microsoft Windows 2000 Professional SP1
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Datacenter Server SP2
Microsoft Windows 2000 Datacenter Server SP1
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Advanced Server SP2
Microsoft Windows 2000 Advanced Server SP1
Microsoft Windows 2000 Advanced Server
Not Vulnerable:

Discussion

Microsoft Windows 2000 Telnet Multiple Sessions DoS Vulnerability

A vulnerability exists in the way Windows 2000 handles specially crafted idle telnet sessions.

A remote client could connect to the telnet service and leave the connection idle without the host terminating the session. If numerous similar connections are made other legitimate clients will not be able to connect to the service.

Exploit / POC

Microsoft Windows 2000 Telnet Multiple Sessions DoS Vulnerability

Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

Microsoft Windows 2000 Telnet Multiple Sessions DoS Vulnerability

Solution:
Microsoft has released a patch for Windows 2000 Advanced Server, Professional and Server which rectifies this issue. Microsoft has advised that Windows 2000 Datacenter Server patches are hardware specifice and should be obtained by the original equipment manufacturer.


Microsoft Windows 2000 Professional

Microsoft Windows 2000 Server SP2

Microsoft Windows 2000 Advanced Server SP1

Microsoft Windows 2000 Server SP1

Microsoft Windows 2000 Advanced Server SP2

Microsoft Windows 2000 Professional SP2

Microsoft Windows 2000 Advanced Server

Microsoft Windows 2000 Professional SP1

Microsoft Windows 2000 Server

References

Microsoft Windows 2000 Telnet Multiple Sessions DoS Vulnerability

References:

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