Exchange must have Administrator audit logging enabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-69723	EX13-CA-000025	SV-84345r1_rule		Medium

Description
Unauthorized or malicious data changes can compromise the integrity and usefulness of the data. Automated attacks or malicious users with elevated privileges have the ability to affect change using the same mechanisms as email administrators. Auditing changes to access mechanisms not only supports accountability and non-repudiation for those authorized to define the environment but also enables investigation of changes made by others who may not be authorized. Note: This administrator auditing feature audits all exchange changes regardless of the users' assigned role or permissions.

Description

Unauthorized or malicious data changes can compromise the integrity and usefulness of the data. Automated attacks or malicious users with elevated privileges have the ability to affect change using the same mechanisms as email administrators. Auditing changes to access mechanisms not only supports accountability and non-repudiation for those authorized to define the environment but also enables investigation of changes made by others who may not be authorized. Note: This administrator auditing feature audits all exchange changes regardless of the users' assigned role or permissions.

STIG	Date
MS Exchange 2013 Client Access Server Security Technical Implementation Guide	2016-07-19

Details

Check Text ( C-70165r1_chk )
Open the Exchange Management Shell and enter the following command: Get-AdminAuditLogConfig \| Select Name, Identity, AdminAuditLogEnabled If the value of AdminAuditLogEnabled is not set to True, this is a finding.

Fix Text (F-75927r1_fix)
Open the Exchange Management Shell and enter the following command: Set-AdminAuditLogConfig -AdminAuditLogEnabled $true