Vulnerability · Published May 21, 2020 · Assigned by microsoft
CVE-2020-1023Microsoft SharePoint Remote Code Execution Vulnerability
High 8.8
In plain English
A high-severity security flaw in Microsoft SharePoint Enterprise Server 2016 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.7% (higher than 90% of all known vulnerabilities).
Official description
A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account. Exploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint. The security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 – before publication |
| Microsoft | Microsoft SharePoint Foundation 2013 Service Pack 1 | 15.0.0 – before publication |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 – before publication |
References
- Microsoft SharePoint Remote Code Execution Vulnerability vendor-advisory, patch
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1023 x_refsource_MISC, x_transferred