Input validation error in Microsoft SharePoint Foundation and Microsoft SharePoint Server - CVE-2019-1257
Published: September 11, 2019
Vulnerability identifier: #VU21029
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-1257
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft SharePoint Foundation
Microsoft SharePoint Server
Microsoft SharePoint Foundation
Microsoft SharePoint Server
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input. A remote authenticated attacker with ability to upload a specially crafted SharePoint application package can execute arbitrary code on the system with privileges of the SharePoint server farm account.
How to mitigate CVE-2019-1257
Install updates from vendor's website.