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Windows NTFS File System Information Disclosure
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Secunia Advisory:
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SA8635
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Release Date:
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2003-04-22
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Last Update:
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2005-07-01
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Popularity:
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16,420 views
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Critical:
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Not critical
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Impact:
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Exposure of system information
Exposure of sensitive information
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Where:
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Local system
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Solution Status:
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Unpatched
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| OS: | Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server
Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Web Edition
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional
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Description:
Matthew Murphy has reported a security issue in Windows, which potentially can be exploited by malicious, local users to gain knowledge of sensitive information.
The problem is caused due to an error in the NTFS file system when handling file handles that are not properly closed before the system is shutdown (e.g. during power/hardware failures, kernel blue screens, or shutdowns initiated with the Win32 API "InitiateSystemShutdown()", or due to a service that is prematurely terminated during system shutdown).
This can cause the file system to incorrectly assign disk blocks to files before they have been initialised, thereby potentially disclosing sensitive information, if a malicious, local user is able to read one of these files.
Solution:
Grant only trusted users access to vulnerable systems.
Provided and/or discovered by:
Matthew Murphy
Changelog:
2005-07-01: Updated advisory.
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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