Title

The dialog enabling users to grant permissions to execute signed content from an un-trusted authority must be disabled. (Cat II impact)

Discussion

Java applets exist both signed and unsigned. Even for signed applets, there can be many sources, some of which may be purveyors of malware. Applet sources considered trusted can have their information populated into the browser, enabling Java to validate applets against trusted sources. Permitting execution of signed Java applets from un-trusted sources may result in acquiring malware, and risks system modification, invasion of privacy, or denial of service.

Check Content

If the system is on the SIPRNET, this requirement is NA. Navigate to the 'deployment.properties' file for Java. For 32 bit systems: C:\Program Files\Java\jre6\lib\deployment.properties For 64 bit systems you must check both the 64 bit and the 32 bit files: C:\Program Files\Java\jre6\lib\deployment.properties C:\Program Files (x86)\Java\jre6\lib\deployment.properties If the key, 'deployment.security.askgrantdialog.notinca=false' is not present, this is a finding. If the key 'deployment.security.askgrantdialog.notinca' exists and is set to true, this is a finding.

Fix Text

Disable the 'Allow user to grant permissions to content from an un-trusted authority' feature. Navigate to the 'deployment.properties' file for Java. For 32 bit systems: C:\Program Files\Java\jre6\lib\deployment.properties. For 64 bit systems you must check both the 64 bit and the 32 bit files: C:\Program Files\Java\jre6\lib\deployment.properties C:\Program Files (x86)\Java\jre6\lib\deployment.properties Add or update the key 'deployment.security.askgrantdialog.notinca' to be 'false'.

Additional Identifiers

Rule ID: SV-43671r2_rule

Vulnerability ID: V-32828

Group Title:

Expert Comments

CCIs tied to check.

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