Code Injection in Microsoft SharePoint Server and Microsoft SharePoint Foundation - CVE-2019-0604
Published: February 13, 2019 / Updated: May 27, 2021
Vulnerability identifier: #VU17622
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/U:Amber
CVE-ID: CVE-2019-0604
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Microsoft
Affected software:
Microsoft SharePoint Server
Microsoft SharePoint Foundation
Microsoft SharePoint Server
Microsoft SharePoint Foundation
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation when processing source code markup of an application package. A remote attacker with ability to upload a malicious package to the SharePoint server can execute it on the system in the context of the SharePoint application pool and the SharePoint server farm account.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system but requires privileges to upload application packages.
Note: this vulnerability is being actively exploited in the wild since April 23.
How to mitigate CVE-2019-0604
Install updates from vendor's website.