CVE-2019-0976 Explained : Impact and Mitigation

A security weakness in the NuGet Package Manager for Linux and Mac, known as the 'NuGet Package Manager Tampering Vulnerability,' allows an authorized attacker to alter the contents of the intermediate build folder.

Understanding CVE-2019-0976

This CVE involves a tampering vulnerability in the NuGet Package Manager for Linux and Mac, potentially exploitable by an authenticated attacker.

What is CVE-2019-0976?

The vulnerability enables an attacker to modify the contents of the intermediate build folder, typically named "obj".

The Impact of CVE-2019-0976

An authorized attacker could tamper with the build folder, potentially leading to unauthorized changes in the build process.

Technical Details of CVE-2019-0976

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability allows for unauthorized modification of the intermediate build folder in the NuGet Package Manager for Linux and Mac.

Affected Systems and Versions

Product: Nuget
Vendor: Microsoft
Vulnerable Version: 5.0.2

Exploitation Mechanism

An authenticated attacker can exploit this vulnerability to manipulate the contents of the build folder, impacting the build process.

Mitigation and Prevention

Protecting systems from CVE-2019-0976 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update NuGet to a non-vulnerable version.
Monitor and restrict access to the build folder.
Implement least privilege access controls.

Long-Term Security Practices

Regularly update software and packages to patch known vulnerabilities.
Conduct security training for developers on secure coding practices.

Patching and Updates

Apply patches and updates provided by Microsoft to address the tampering vulnerability in NuGet.