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CVE-2021-31181

Status Candidate

Overview

Microsoft SharePoint Remote Code Execution Vulnerability

Related Files

Microsoft SharePoint Unsafe Control And ViewState Remote Code Execution
Posted Jun 17, 2021
Authored by unknown, Spencer McIntyre, wvu | Site metasploit.com

The EditingPageParser.VerifyControlOnSafeList method fails to properly validate user supplied data. This can be leveraged by an attacker to leak sensitive information in rendered-preview content. This module will leak the ViewState validation key and then use it to sign a crafted object that will trigger code execution when deserialized. Tested against SharePoint 2019 and SharePoint 2016, both on Windows Server 2016.

tags | exploit, code execution
systems | windows
advisories | CVE-2021-31181
SHA-256 | 5dcb06868c15ec6031a011204cbd74de26b37669890217421638293a9f77e49b
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