Details

This policy setting determines whether Internet Explorer 11 uses 64-bit processes (for greater security) or 32-bit processes (for greater compatibility) when running in Enhanced Protected Mode on 64-bit versions of Windows.Important: Some ActiveX controls and toolbars may not be available when 64-bit processes are used. If you enable this policy setting, Internet Explorer 11 will use 64-bit tab processes when running in Enhanced Protected Mode on 64-bit versions of Windows. If you disable this policy setting, Internet Explorer 11 will use 32-bit tab processes when running in Enhanced Protected Mode on 64-bit versions of Windows. If you don’t configure this policy setting, users can turn this feature on or off using Internet Explorer settings. This feature is turned off by default.

Solution

Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer-> Internet Control Panel -> Advanced Page ‘Turn on 64-bit tab processes when running in Enhanced Protected Mode on 64-bit versions of Windows’ to ‘Enabled’.

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_IE11_V2R1_STIG.ziphttps://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_IE11_V2R1_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: System and Communications Protection.This control applies to the following type of system Windows.

References

• 800-53|SC-3
• CAT|II
• CCI|CCI-001084
• Rule-ID|SV-223077r428783_rule
• STIG-ID|DTBI356-IE11
• STIG-Legacy|SV-59861
• STIG-Legacy|V-46995
• Vuln-ID|V-223077

Source

• Tenable.com/audits