Vulnerability identifier: #VU47571
Vulnerability risk: High
CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: Yes
Vulnerable software:
Microsoft SharePoint Server
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 Microsoft SharePoint fails to check the source markup of an application package. A remote 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: 2016 - 2019
Microsoft SharePoint Server: 2013
External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16951
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.