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V-223026

CAT II (Medium)

Clipboard operations via script must be disallowed (Internet zone).

Rule ID

SV-223026r960963_rule

STIG

Microsoft Internet Explorer 11 Security Technical Implementation Guide

Version

V2R7

CCIs

CCI-000381

Discussion

A malicious script could use the clipboard in an undesirable manner, for example, if the user had recently copied confidential information to the clipboard while editing a document, a malicious script could harvest that information. It might be possible to exploit other vulnerabilities in order to send the harvested data to the attacker. Allow paste operations via script must have a level of protection based upon the site being accessed.

Check Content

The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Internet Zone -> 'Allow cut, copy or paste operations from the clipboard via script' must be 'Enabled', and 'Disable' selected from the drop-down box. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3 Criteria: If the value "1407" is REG_DWORD = 3, this is not a finding.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Internet Zone -> 'Allow cut, copy or paste operations from the clipboard via script' to 'Enabled', and select 'Disable' from the drop-down box.