20221 : Microsoft Windows 2000 runas.exe Named Pipe Single Thread DoS
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Info

Last Modified

10 months ago

Percent Complete

100%

Disclosure

Nov 12, 2001

Discovery

Unknown

Dates

Exploit

Unknown

Solution

Unknown

Description

Microsoft Windows 2000 contains a flaw that may allow a local denial of service. The issue is triggered when a RUN AS dialog is opened and never closed. The operating system can service only one such dialog at a time, preventing other users from usign the RUN AS service.

Classification

Location: Local Access Required
Attack Type: Denial of Service
Impact: Loss of Availability
Exploit: Exploit Available
Disclosure: OSVDB Verified

Technical

This is a denial of service against the RunAs service only -- it would not allow the system or any other services to be disrupted. An attacker could only exploit this vulnerability on the local machine, so the sole outcome of a successful attack would be to deny use of the RunAs service to the attacker himself (or, in the case of a terminal server, to other users of that machine).

Solution

Upgrade to Service Pack version 3 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Microsoft Corporation
Watch-list
Windows
Watch-list
2000 SP2
2000 SP1
2000

References

Credit

  • Steve - steveBrand New Doo Doosecuresolutions.org - Camisade LLC

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