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The system must be configured to block untrusted fonts from loading.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-63641 | WN10-CC-000140 | SV-78131r1_rule | Medium |
| Description |
|---|
| Attackers may use fonts that include malicious code to compromise a system. This setting will prevent untrusted fonts, processed by the Graphics Device Interface (GDI), from loading if installed outside of the %windir%/Fonts directory. |
| STIG | Date |
|---|---|
| Windows 10 Security Technical Implementation Guide | 2017-02-21 |
Details
| Check Text ( C-64391r1_chk ) |
|---|
| 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 NT\MitigationOptions\ Value Name: MitigationOptions_FontBocking Type: REG_SZ Value: 1000000000000 (w/ 12 zeros) |
| Fix Text (F-69571r1_fix) |
|---|
| Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Mitigation Options >> "Untrusted Font Blocking" to "Enabled" with "Block untrusted fonts and log events" selected in "Mitigation Options". |