Title

SharePoint must terminate the network connection associated with a communications session at the end of the session or after an organizationally defined time period of inactivity. (Cat II impact)

Discussion

This requirement applies to both internal and external networks. Terminating network connections associated with communications sessions include, de-allocating associated TCP/IP address/port pairs at the operating-system level, or de-allocating networking assignments at the application level if multiple application sessions are using a single operating system-level network connection. The time period of inactivity may, as the organization deems necessary, be a set of time periods by type of network access or for specific accesses.

Check Content

1. In Central Administration, click Application Management. 2. On the Application Management page, in the Web Applications list, click Manage web applications. 3. Click a web application, and then click General Settings in the Manage section of the ribbon. 4. Click on the Web Application General Settings dialog window in the Web Page Security Validation section. 5. Verify Security validation is” is set to On and Security validation expires: is set to 10 minutes or less. 6. Mark as a finding if Web Page Security Validation is set to Off or a value greater than 10 minutes.

Fix Text

1. In SharePoint Central Administration, click Application Management. 2. On the Application Management page, in the Web Applications list, click Manage web applications. 3. Click a web application, and then click General Settings in the Manage section of the ribbon. 4. In the Web Application General Settings dialog window, in the Web Page Security Validation section, set Web Page Security Validation to On and a value less than 10 minutes.

Additional Identifiers

Rule ID:

Vulnerability ID: V-28071

Group Title:

Expert Comments

CCIs tied to check.

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