Title

Redirection behavior for upgraded web sites by SharePoint must be blocked. (Cat II impact)

Discussion

InfoPath automatically redirects user requests for sites that have not been upgraded to the temporary URL if it is located on the local intranet, but blocks them if the temporary URL is located elsewhere. InfoPath will prompt users before redirecting forms or form templates to another intranet site. If this restriction is relaxed, all requests to sites that have not been upgraded will be redirected to their targets, regardless of location. This functionality could cause requests made to a secure site to be redirected to an unsecured one (for example, requests to an intranet site could be redirected to an unencrypted Internet site), causing sensitive information to be at risk.

Check Content

The policy value for User Configuration -> Administrative Templates -> Microsoft InfoPath 2010 -> Security -> “Control behavior for Microsoft SharePoint Foundation gradual upgrade” must be set to “Enabled (Block all redirections)”. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\14.0\infoPath\security Criteria: If the value GradualUpgradeRedirection is REG_DWORD = 2, this is not a finding.

Fix Text

Set the policy value for User Configuration -> Administrative Templates -> Microsoft InfoPath 2010 -> Security -> “Control behavior for Microsoft SharePoint Foundation gradual upgrade” to “Enabled (Block all redirections)”.

Additional Identifiers

Rule ID: SV-33657r1_rule

Vulnerability ID: V-17576

Group Title: DTOO157 - SharePoint Services Gradual Upgrade

Expert Comments

CCIs tied to check.

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