NuGet Package Manager Tampering Vulnerability

A tampering vulnerability exists in the NuGet Package Manager for Linux and Mac that could allow an authenticated attacker to modify contents of the intermediate build folder (by default “obj”). An attacker who successfully exploited this vulnerability could potentially modify files and folders that impact binaries created as part of building a project.

To exploit this vulnerability, an attacker would need to log on to the affected system and tamper with the intermediate build folder which may impact the output of future builds of that project.

The security update addresses the vulnerability by correcting permissions on the intermediate build folder.