News

Microsoft Fixes NT 4.0 Bug

Microsoft released a patch to eliminate a security vulnerability in Windows NT 4.0. The vulnerability could allow a user logged onto an NT 4.0 machine from the keyboard to become an administrator on the machine.

LPC Ports is a facility that allows LPC calls on a machine. One of the functions in the LPC Ports API set enables, by design, a server thread to impersonate a client thread on the same machine. A flaw in the validation portion of the function would allow a malicious user to create both the server and client threads and manipulate the impersonation request to allow it to run in the context of any desired user on the local machine, including the System itself.

The primary risk is that a malicious user could gain additional privileges on the local machine. However, it could also be used to cause audit logs to indicate that certain actions were taken by another user.

All flavors of Windows NT 4.0 are affected by the vulnerability. The patch for Windows NT 4.0 Workstation, Windows NT 4.0 Server, and Windows NT 4.0 Server, Enterprise Edition are available for Intel platform machines at http://www.microsoft.com/downloads/release.asp?ReleaseID=17382 and for Alpha machines at http://www.microsoft.com/downloads/release.asp?ReleaseID=17383. A patch for Windows NT 4.0 Server, Terminal Server Edition will be available soon. -- Isaac Slepner

About the Author

Scott Bekker is editor in chief of Redmond Channel Partner magazine.

Featured

  • Windows Autopilot for HoloLens 2 Hits Preview

    Windows Autopilot, Microsoft's PC self-provisioning program, is now being tested for use with the company's mixed-reality headset, the HoloLens 2.

  • Signs Point to Microsoft Charging for Use of APIs

    There are indications that Microsoft is mulling charging customers for software that uses its application programming interfaces.

  • The 2020 Microsoft Product Roadmap

    From the next major update to Windows 10 to the next generations of .NET and PowerShell, here's what's on tap from Microsoft this year.

  • Microsoft Extends Azure Hybrid Benefit Licensing to Linux

    Microsoft has expanded its Azure Hybrid Benefit licensing program to include Linux servers, particularly Red Hat Enterprise Linux or SUSE Linux Enterprise servers.