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CCE
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CCE-44520-5

Platform: win2016Date: (C)2017-08-03   (M)2017-10-16



"System objects: Require case insensitivity for non-Windows subsystems" This policy setting determines whether case insensitivity is enforced for all subsystems. The Microsoft Win32 * subsystem is case insensitive. However, the kernel supports case sensitivity for other subsystems, such as the Portable Operating System Interface for UNIX (POSIX). Because Windows is case insensitive (but the POSIX subsystem will support case sensitivity), failure to enforce this policy setting makes it possible for a user of the POSIX subsystem to create a file with the same name as another file by using mixed case to label it. Such a situation can block access to these files by another user who uses typical Win32 tools, because only one of the files will be available. Vulnerability: Because Windows is case-insensitive but the POSIX subsystem will support case sensitivity, failure to enable this policy setting would make it possible for a user of that subsystem to create a file with the same name as another file but with a different mix of upper and lower case letters. Such a situation could potentially confuse users when they try to access such files from normal Win32 tools because only one of the files will be available. Counter Measure: Enable the System objects: Require case insensitivity for non-Windows subsystems setting. Potential Impact: All subsystems will be forced to observe case insensitivity. This configuration may confuse users who are familiar with any UNIX-based operating systems that are case-sensitive.


Parameter: ObCaseInsensitive


Technical Mechanism: Fix: (1) GPO: Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options (2) REG: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Kernel!ObCaseInsensitive

References:

Resource IdReference
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:40274


OVAL    1
oval:org.secpod.oval:def:40274
XCCDF    2
xccdf_org.secpod_benchmark_PCI_3_2_Windows_Server_2016
xccdf_org.secpod_benchmark_general_Windows_Server_2016

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