Windows Server 2019 must prevent users from changing installation options.

STIG ID: WN19-CC-000420  |  SRG: SRG-OS-000362-GPOS-00149 | Severity: medium |  CCI: CCI-003980

Vulnerability Discussion

Installation options for applications are typically controlled by administrators. This setting prevents users from changing installation options that may bypass security features.

Check

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Installer\

Value Name: EnableUserControl

Type: REG_DWORD
Value: 0x00000000 (0)

Fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Installer >> "Allow user control over installs" to "Disabled".
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