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Microsoft SharePoint Server Exposure of Sensitive Information to an Unauthorized Actor Vulnerability

Summary

An information disclosure vulnerability exists where certain modes of the search function in Microsoft SharePoint Server are vulnerable to cross-site search attacks (a variant of cross-site request forgery, CSRF).

Credit:

The information has been provided by Oleksandr Mirosh

The original article can be found at:https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1103

Details

When users are simultaneously logged in to Microsoft SharePoint Server and visit a malicious web page, the attacker can, through standard browser functionality, induce the browser to invoke search queries as the logged in user, aka ‘Microsoft SharePoint Information Disclosure Vulnerability’.

Vulnerable Systems:

Microsoft SharePoint Server 

CVE Information:

CVE-2020-1103

Disclosure Timeline:
Published Date:5/21/2020

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