The URL protocol schemas file and javascript must be disabled

Part of DTBC0021 - Disable URL protocol schemas

Associated with IA controls: ECSC-1

Associated with: CCI-001588

SV-47058r2_rule The URL protocol schemas file and javascript must be disabled

Vulnerability discussion

"Disables the listed protocol schemes in Google Chrome. URLs using a scheme from this list will not load and can not be navigated to. If this policy is left not set or the list is empty all schemes will be accessible in Google Chrome." - Google Chrome Administrators Policy List

Check content

Universal method (Requires Chrome Browser v15 or later): 1. In the omnibox (address bar) type chrome://policy 2. If DisabledSchemes is not displayed under the Policy Name column or it is not set to file,javascript under the Policy Value column, then this is a finding. Windows method: 1. Start regedit 2. Navigate to HKLM\Software\Policies\Google\Chrome\DisabledSchemes 3. If the DisabledSchemes key does not exist, or the does not cantain entries 1 and 2 set to file and javascript, then this is a finding.

Fix text

Valid for Chrome Browser version 12 or later. Windows registry: Key Path: HKLM\Software\Policies\Google\Chrome\DisabledSchemes\ Value Name: 1 Value Type: String (REG_SZ) Value Data: file Key Path: HKLM\Software\Policies\Google\Chrome\DisabledSchemes\ Value Name: 2 Value Type: String (REG_SZ) Value Data: javascript Windows group policy: Policy Path: Computer Configuration\Administrative Templates\Google\Google Chrome\ Policy Name: Disable URL protocol schemes Policy State: Enabled Policy Value 1: file Policy Value 2: javascript

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