Vulnerability identifier: #VU21030
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-502
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Microsoft SharePoint Foundation
Server applications /
Application servers
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 insufficient validation of user-supplied input passed to the SharePoint API endpoint. A remote attacker can send specially crafted request to the affected API and execute arbitrary code on the system in context of the SharePoint server farm account.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Microsoft SharePoint Foundation: 2013
Microsoft SharePoint Server: 2016 - 2019
External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1296
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.