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Platform: win10Date: (C)2016-09-23   (M)2018-03-24

Ensure No Auditing for 'Audit Policy: Logon-Logoff: IPsec Main Mode' This subcategory reports the results of Internet Key Exchange (IKE) protocol and Authenticated Internet Protocol (AuthIP) during Main Mode negotiations. Events for this subcategory include: - 4646: IKE DoS-prevention mode started. - 4650: An IPsec Main Mode security association was established. Extended Mode was not enabled. Certificate authentication was not used. - 4651: An IPsec Main Mode security association was established. Extended Mode was not enabled. A certificate was used for authentication. - 4652: An IPsec Main Mode negotiation failed. - 4653: An IPsec Main Mode negotiation failed. - 4655: An IPsec Main Mode security association ended. - 4976: During Main Mode negotiation, IPsec received an invalid negotiation packet. If this problem persists, it could indicate a network issue or an attempt to modify or replay this negotiation. - 5049: An IPsec Security Association was deleted. - 5453: An IPsec negotiation with a remote computer failed because the IKE and AuthIP IPsec Keying Modules (IKEEXT) service is not started. 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. 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.


Technical Mechanism: (1) GPO: Computer Configuration\Windows Settings\Security Settings\Advanced Audit Policy Configuration\Audit Policies\Logon/Logoff\Audit Policy: Logon-Logoff: IPsec Main Mode


Resource IdReference
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:35470

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