Applications May Be Able to "Listen" on TCP or UDP Ports

ID: Q194431

The information in this article applies to:

Microsoft Windows NT Server version 4.0
Microsoft Windows NT Workstation version 4.0
Microsoft Windows NT Server, Enterprise Edition version 4.0
Microsoft Windows NT Server version 4.0, Terminal Server Edition

SYMPTOMS

It is possible for an application or service to "listen" in on an already opened TCP or UDP port. This will allow the application to collect any data coming into that specific port.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, please see the following article in the Microsoft Knowledge Base:

Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack

STATUS

Microsoft has confirmed this to be a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

Additional query words: TCP UDP Port

Keywords : NT4SP4Fix kbbug4.00 kbfix4.00.sp4
Version : WinNT:4.0
Platform : winnt
Issue type : kbbug