The log data and records from the IIS 10.0 web server must be backed up onto a different system or media.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-100117	IIST-SV-000116	SV-109221r1_rule		Medium

Description
Protection of log data includes ensuring log data is not accidentally lost or deleted. Backing up log records to an unrelated system, or onto separate media than the system on which the web server is running, helps to ensure the log records will be retained in the event of a catastrophic system failure.

STIG	Date
Microsoft IIS 10.0 Server Security Technical Implementation Guide	2020-06-08

Details

Check Text ( C-98969r1_chk )
The IIS 10.0 web server and website log files should be backed up by the system backup. To determine if log files are backed up by the system backup, determine the location of the web server log files and each website's log files. Open the IIS 10.0 Manager. Click the IIS 10.0 server name. Click the "Logging" icon. Under "Log File" >> "Directory" obtain the path of the log file. Once all locations are known, consult with the System Administrator to review the server's backup procedure and policy. Verify the paths of all log files are part of the system backup. Verify log files are backed up to an unrelated system or onto separate media on which the system the web server is running. If the paths of all log files are not part of the system backup and/or not backed up to a separate media, this is a finding.

Check Text ( C-98969r1_chk )

The IIS 10.0 web server and website log files should be backed up by the system backup.

To determine if log files are backed up by the system backup, determine the location of the web server log files and each website's log files.

Open the IIS 10.0 Manager.

Click the IIS 10.0 server name.

Click the "Logging" icon.

Under "Log File" >> "Directory" obtain the path of the log file.

Once all locations are known, consult with the System Administrator to review the server's backup procedure and policy.

Verify the paths of all log files are part of the system backup.
Verify log files are backed up to an unrelated system or onto separate media on which the system the web server is running.

If the paths of all log files are not part of the system backup and/or not backed up to a separate media, this is a finding.

Fix Text (F-105803r1_fix)
Configure system backups to include the directory paths of all IIS 10.0 web server and website log files.