Extensions that are approved for use must be allowlisted if used.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-235755 | EDGE-00-000042 | SV-235755r961479_rule | CCI-001774 | low |
| Description | ||||
| By default, all extensions are allowed. However, if all extensions are blocked by setting the "ExtensionInstallBlockList" policy to "*," users can only install extensions defined in this policy. | ||||
| STIG | Date | |||
| Microsoft Edge Security Technical Implementation Guide | 2025-05-15 | |||
Related Frameworks
3 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
CM-7(5)
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.4.8
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-001774
1.00
- DISA · 2 · disa_xccdf · related
Details
Check Text (C-235755r961479_chk)
This requirement for "Allow specific extensions to be installed" is not required; this is optional.
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 configured, the list of extensions for which Microsoft Edge allows to be installed may be allowlisted.
Fix Text (F-38937r766862_fix)
Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Allow specific extensions to be installed" to "Enabled". A list of allowlisted extensions may then be specified.