#VU46408 Input validation error in Microsoft SharePoint Server and Microsoft SharePoint Foundation


Published: 2020-09-08

Vulnerability identifier: #VU46408

Vulnerability risk: Medium

CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-1576

CWE-ID: CWE-20

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 attacker to execute arbitrary code on the target system.

The vulnerability exists due to the affected software fails to check the source markup of an application package. A remote authenticated attacker can upload a specially crafted SharePoint application package and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft SharePoint Server: 2010 - 2019

Microsoft SharePoint Foundation: 2010 Service Pack 2 - 2013


External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1576


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