Title

Block redirection behavior for upgraded web sites by SharePoint - Infopath. (Cat II impact)

Discussion

During a Windows SharePoint Services gradual upgrade, sites that have been upgraded remain available at their original URLs (for example, http://<company_name>/sites/SiteA), while sites that are still in the process of being upgraded are located at a temporary domain URL (for example, http://<company_name_old>/sites/SiteB). By default, InfoPath 2007 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 Office InfoPath 2007 -> Security -> “Control behavior for Windows SharePoint Services gradual upgrade” will be set to “Enabled (Block all redirections)”. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\12.0\InfoPath\Security Criteria: If the value GradualUpgradeRedirection is REG_DWORD = 2, this is not a finding.

Fix Text

The policy value for User Configuration -> Administrative Templates -> Microsoft Office InfoPath 2007 -> Security -> “Control behavior for Windows SharePoint Services gradual upgrade” will be set to “Enabled (Block all redirections)”.

Additional Identifiers

Rule ID: SV-18691r1_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.