Signature Detail

HTTP: Microsoft SharePoint SPVirtualFile and WebPartPageWebService Information Disclosure

This signature detects attempts to exploit a known vulnerability against Microsoft SharePoint's SPVirtualFile and WebPartPageWebService classes . A successful attack can lead to sensitive information disclosure.

Extended Description

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'.

Affected Products

• Microsoft sharepoint_enterprise_server 2016
• Microsoft sharepoint_foundation 2010
• Microsoft sharepoint_foundation 2013
• Microsoft sharepoint_server 2019

References

• CVE: CVE-2019-1443
• URL: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1443