Endpoint Vulnerability

Microsoft: .NET Framework Remote Code Execution Vulnerability

Description

A remote code execution vulnerability exists in .NET software when the software fails to check the source markup of a file. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of .NET Framework. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. The security update addresses the vulnerability by correcting how .NET Framework checks the source markup of a file.

Affected Products

Microsoft .NET Framework 4.5.2 on Windows RT 8.1,Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows RT 8.1,Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation),Microsoft .NET Framework 3.5 on Windows Server, version 1803 (Server Core Installation),Microsoft Visual Studio 2019 version 16.0,Microsoft Visual Studio 2019 version 16.1,Microsoft .NET Framework 4.8 on Windows RT 8.1,Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation),Windows Server 2016,Windows Server 2012

References

CVE-2019-1113,