STIGUI
V-223087CAT II — Medium severitySV-223087r879587_rule

Java permissions must be disallowed (Locked Down Local Machine zone).

Rule version DTBI430-IE11 · STIG v2 · 2023-12-01

Discussion

Java applications could contain malicious code. This policy setting allows you to manage permissions for Java applets. If you enable this policy setting, options can be chosen from the drop-down box. Use of the Custom permission will control permissions settings individually. Use of the Low Safety permission enables applets to perform all operations. Use of the Medium Safety permission enables applets to run in their sandbox (an area in memory outside of which the program cannot make calls), plus adds capabilities like scratch space (a safe and secure storage area on the client computer) and a user-controlled file I/O. Use of the High Safety permission enables applets to run in their sandbox. If you disable this policy setting, Java applets cannot run. If you do not configure this policy setting, the permission is set to High Safety.

Check

The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Locked-Down Local Machine Zone -> 'Java permissions' must be 'Enabled', and 'Disable Java' selected from the drop-down box. Procedure: Use the Windows Registry Editor to navigate to the following keys: HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Lockdown_Zones\0 Criteria: If the value "1C00" is REG_DWORD = 0, this is not a finding.

Fix

Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Locked-Down Local Machine Zone -> 'Java permissions' to 'Enabled', and select 'Disable Java' from the drop-down box.

Identifiers

Group ID
V-223087
Group title
SRG-APP-000141
Rule ID
SV-223087r879587_rule
Check ID
C-24760r428811_chk
Fix ID
F-24748r428812_fix