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CCE
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CCE-41811-1

Platform: win10Date: (C)2016-09-23   (M)2017-10-18



Ensure No Auditing for 'Audit Policy: Object Access: Registry' This subcategory reports when registry objects are accessed. Only registry objects with SACLs cause audit events to be generated, and only when they are accessed in a manner matching their SACL. By itself, this policy setting will not cause auditing of any events. It determines whether to audit the event of a user who accesses a registry object that has a specified system access control list (SACL), effectively enabling auditing to take place. A SACL is comprised of access control entries (ACEs). Each ACE contains three pieces of information: - The security principal (user, computer, or group) to be audited. - The specific access type to be audited, called an access mask. - A flag to indicate whether to audit failed access events, successful access events, or both. If you configure the Audit object access setting to Success, an audit entry is generated each time that a user successfully accesses an object with a specified SACL. If you configure this policy setting to Failure, an audit entry is generated each time that a user fails in an attempt to access an object with a specified SACL. Organizations should define only the actions they want enabled when they configure SACLs. For example, you might want to enable the Write and Append Data auditing setting on executable files to track when they are changed or replaced, because computer viruses, worms, and Trojan horses typically target executable files. Similarly, you might want to track when sensitive documents are accessed or changed. Events for this subcategory include: - 4657 : A registry value was modified. - 5039: A registry key was virtualized. Refer to the Microsoft Knowledgebase article 'Description of security events in Windows Vista and in Windows Server 2008' for the most recent information about this setting: http://support.microsoft.com/kb/947226. Counter Measure: Enable Audit policy settings that support the organizational security policy for all the computers in your organization. Identify the components that you need for an audit policy that enables your organization to hold users accountable for their actions while using organizational resources and enables IT departments to detect unauthorized activity efficiently and then track those events in log files. When configuring the File System or Registry audit policy settings an additional step is necessary to generate events for audits. For each of these you also need to configure the Handle Manipulation setting to Success and Failure, as described in the Advanced Security Audit Policy Step-by-Step Guide: http://technet.microsoft.com/en-us/library/dd408940(WS.10).aspx. Potential Impact: If no audit settings are configured, or if audit settings are too lax on the computers in your organization, security incidents might not be detected or not enough evidence will be available for network forensic analysis after security incidents occur. However, if audit settings are too severe, critically important entries in the Security log may be obscured by all of the meaningless entries and computer performance and the available amount of data storage may be seriously affected. Companies that operate in certain regulated industries may have legal obligations to log certain events or activities.


Parameter:


Technical Mechanism: (1) GPO: Computer Configuration\Windows Settings\Security Settings\Advanced Audit Policy Configuration\Audit Policies\Object Access\Audit Policy: Object Access: Registry

References:

Resource IdReference
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:35476


OVAL    1
oval:org.secpod.oval:def:35476
XCCDF    4
xccdf_org.secpod_benchmark_NIST_800_53_r4_Windows_10
xccdf_org.secpod_benchmark_PCI_3_2_Windows_10
xccdf_org.secpod_benchmark_NIST_800_171_R1_Windows_10
xccdf_org.secpod_benchmark_general_Windows_10
...

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