STIGQter: STIG Summary: Microsoft Edge Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 14 Jan 2021:

Extensions that are approved for use must be allowlisted.

DISA Rule

SV-235755r626523_rule

Vulnerability Number

V-235755

Group Title

SRG-APP-000386

Rule Version

EDGE-00-000042

Severity

CAT II

CCI(s)

• CCI-001774 - The organization employs a deny-all, permit-by-exception policy to allow the execution of authorized software programs on the information system.

Weight

10

Fix Recommendation

Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Allow specific extensions to be installed" to "Enabled". A list of whitelisted extensions may then be specified.

Check Contents

The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Allow specific extensions to be installed" must be set to "Enabled".

Use the Windows Registry Editor to navigate to the following key:
HKLM\SOFTWARE\Policies\Microsoft\Edge

"ExtensionInstallAllowlist" must be set as follows:
HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallAllowlist\1 = "extension_id1"
HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallAllowlist\2 = "extension_id2"

If the value for "ExtensionInstallAllowlist" is not set, this is a finding.

If no extensions in the agency require whitelisting for use, this is Not Applicable.

Vulnerability Number

V-235755

Documentable

False

Rule Version

EDGE-00-000042

Severity Override Guidance

The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Allow specific extensions to be installed" must be set to "Enabled".

Use the Windows Registry Editor to navigate to the following key:
HKLM\SOFTWARE\Policies\Microsoft\Edge

"ExtensionInstallAllowlist" must be set as follows:
HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallAllowlist\1 = "extension_id1"
HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallAllowlist\2 = "extension_id2"

If the value for "ExtensionInstallAllowlist" is not set, this is a finding.

If no extensions in the agency require whitelisting for use, this is Not Applicable.

Check Content Reference

M

Target Key

5280

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