Arbitrary file upload in Microsoft Sharepoint Enterprise Server

CVE-2019-1443

An information disclosure vulnerability exists in Microsoft SharePoint when an attacker uploads a specially crafted file to the SharePoint Server.An authenticated attacker who successfully exploited this vulnerability could potentially leverage SharePoint functionality to obtain SMB hashes.The security update addresses the vulnerability by correcting how SharePoint checks file content., aka 'Microsoft SharePoint Information Disclosure Vulnerability'.

Vulnerability class: Unrestricted File Upload

EPSS: 0.054 (91.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-1443?
CVE-2019-1443 is a medium-severity vulnerability in Microsoft Sharepoint Enterprise Server, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 6.5/10. Published 2019-11-12.
How severe is CVE-2019-1443?
Medium severity. CVSS v3 base score is 6.5 out of 10.