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The accounts created by uninstalled features (i.e., tools, utilities, specific, etc.) must be deleted from the IIS 8.5 server.


Overview

Finding ID Version Rule ID IA Controls Severity
V-214411 IISW-SV-000121 SV-214411r508658_rule Medium
Description
When accounts used for web server features such as documentation, sample code, example applications, tutorials, utilities, and services are created even though the feature is not installed, they become an exploitable threat to a web server. These accounts become inactive, are not monitored through regular use, and passwords for the accounts are not created or updated. An attacker, through very little effort, can use these accounts to gain access to the web server and begin investigating ways to elevate the account privileges. The accounts used for web server features not installed must not be created and must be deleted when these features are uninstalled.
STIG Date
Microsoft IIS 8.5 Server Security Technical Implementation Guide 2020-09-25

Details

Check Text ( C-15621r310281_chk )
Access the IIS 8.5 web server.

Access “Apps” menu. Under “Administrative Tools”, select “Computer Management”.

In left pane, expand "Local Users and Groups" and click on "Users".

Review the local users listed in the middle pane.

If any local accounts are present and were created by features which have been uninstalled or are not used, this is a finding.
Fix Text (F-15619r310282_fix)
Access the IIS 8.5 web server.

Access “Apps” menu. Under “Administrative Tools”, select “Computer Management”.

In left pane, expand "Local Users and Groups" and click on "Users".

Delete any local accounts which were created by features which have been uninstalled or are not used.