Improper access control in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
I am running SharePoint Server 2016. Do the updates for SharePoint Enterprise Server 2016 also apply to the version I am running? Yes. The same KB number applies to both SharePoint Server 2016 and SharePoint Enterprise Server 2016. Customers running either version should install the security update to be protected from this vulnerability. How could an attacker exploit this vulnerability? An authenticated attacker who holds site-management permissions on a SharePoint site could start a site export operation that does not correctly enforce permission checks on that site's sub-sites. This could allow the attacker to access content and security-related information from sub-sites they are not otherwise authorized to view. Network access and authentication are required; user interaction is not required. There are multiple update packages available for some of the affected software. Do I need to install all the updates listed in the Security Updates table for the software? Yes. Customers should apply all updates offered for the software installed on their systems. If multiple updates apply, they can be installed in any order.
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