Title

Firefox cryptomining protection must be enabled. (Cat II impact)

Discussion

The Content Blocking/Tracking Protection feature stops Firefox from loading content from malicious sites. The content might be a script or an image, for example. If a site is on one of the tracker lists that Firefox is set to use, the fingerprinting script (or other tracking script/image) will not be loaded from that site. Cryptomining scripts use a computer's central processing unit to invisibly mine cryptocurrency.

Check Content

Type "about:policies" in the browser address bar. If "EnableTrackingProtection" is not displayed under Policy Name or the Policy Value is not "Cryptomining" with a value of "true", this is a finding.

Fix Text

Windows group policy: 1. Open the group policy editor tool with "gpedit.msc". 2. Navigate to Policy Path: Computer Configuration\Administrative Templates\Mozilla\Firefox\Tracking Protection Policy Name: Cryptomining Policy State: Enabled macOS "plist" file: Add the following: <key>EnableTrackingProtection</key> <dict> <key>Cryptomining</key> <true/> </dict> Linux "policies.json" file: Add the following in the policies section: "EnableTrackingProtection": { "Cryptomining": true }

Additional Identifiers

Rule ID: SV-251568r879587_rule

Vulnerability ID: V-251568

Group Title: SRG-APP-000141

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.