ACLs for event logs will conform to minimum requirements.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-1077	2.001	SV-32246r1_rule	ECTP-1	Medium

Description
Event logs are susceptible to unauthorized, and possibly anonymous, tampering if proper ACLs are not applied.

STIG	Date
Windows Server 2008 R2 Domain Controller Security Technical Implementation Guide	2015-06-16

Details

Check Text ( C-32706r1_chk )
Verify the permissions on the event logs are set to the following: Application.evtx Security.evtx System.evtx Administrators - Read and Execute "Auditors" group - Full SYSTEM - Full Eventlog - Full By default, all are found in the “%SystemRoot%\System32\Winevt\Logs” directory. They may have been moved to another folder. See V-1137 for the requirement for establishing an auditors group. If the permissions for these files are not as restrictive as the ACLs listed, then this is a finding.

Check Text ( C-32706r1_chk )

Verify the permissions on the event logs are set to the following:

Application.evtx
Security.evtx
System.evtx

Administrators - Read and Execute
"Auditors" group - Full
SYSTEM - Full
Eventlog - Full

By default, all are found in the “%SystemRoot%\System32\Winevt\Logs” directory. They may have been moved to another folder.

See V-1137 for the requirement for establishing an auditors group.

If the permissions for these files are not as restrictive as the ACLs listed, then this is a finding.

Fix Text (F-33756r1_fix)
Set the ACL permissions on the event logs as defined in the manual check. If the location of the logs has been changed, when adding Eventlog to the permissions it must be entered as “NT Service\Eventlog”.