#VU11011 Privilege escalation in Microsoft SharePoint Server and Microsoft SharePoint Foundation


Published: 2018-03-13 | Updated: 2018-03-13

Vulnerability identifier: #VU11011

Vulnerability risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0947

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft SharePoint Server
Server applications / Application servers
Microsoft SharePoint Foundation
Server applications / Application servers

Vendor: Microsoft

Description
The vulnerability allows a remote authenticated attacker to gain elevated privileges on the target system.

The weakness exists due to improper verification of tenant permissions by Microsoft SharePoint Server. A remote attacker can send a specially crafted request to an affected SharePoint server and gain system privileges allowing to read, change permissions, and edit or delete content.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft SharePoint Server: 2016

Microsoft SharePoint Foundation: 2013


External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0947


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability