Exchange software baseline copy must exist.

From MS Exchange 2013 Client Access Server Security Technical Implementation Guide

Part of SRG-APP-000380

Associated with: CCI-001813

SV-84385r1_rule Exchange software baseline copy must exist.

Vulnerability discussion

Exchange software, as with other application software installed on a host system, must be included in a system baseline record and periodically reviewed; otherwise, unauthorized changes to the software may not be discovered. This effort is a vital step to securing the host and the applications, as it is the only method that may provide the ability to detect and recover from otherwise undetected changes, such as those that result from worm or bot intrusions. The Exchange software and configuration baseline is created and maintained for comparison during scanning efforts. Operational procedures must include baseline updates as part of configuration management tasks that change the software and configuration.

Check content

Review the Email Domain Security Plan (EDSP). Review the application software baseline procedures and implementation artifacts. Note the list of files and directories included in the baseline procedure for completeness. If an email software copy exists to serve as a baseline and is available for comparison during scanning efforts, this is not a finding.

Fix text

Update the EDSP. Implement the email software baseline process.

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