Remote Code Execution (RCE) Affecting microsoft.aspnetcore.app package, versions [,2.1.20) [3.0.0,3.1.6)
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Test your applications- Snyk ID SNYK-DOTNET-MICROSOFTASPNETCOREAPP-584430
- published 15 Jul 2020
- disclosed 14 Jul 2020
- credit Oleksandr Mirosh from Micro Focus Fortify
Introduced: 14 Jul 2020
CVE-2020-1147 Open this link in a new tabHow to fix?
Upgrade Microsoft.AspNetCore.App
to version 2.1.20, 3.1.6 or higher.
Overview
Microsoft.AspNetCore.App is a package that provides a default set of APIs for building an ASP.NET Core application.
Affected versions of this package are vulnerable to Remote Code Execution (RCE). The software fails to check the source markup of XML file input. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the process responsible for deserialization of the XML content. To exploit this vulnerability, an attacker could upload a specially crafted document to a server utilizing an affected product to process content.