CVE-2019-0976 NuGet Package Manager Tampering Vulnerability
An authenticated attacker can tamper with intermediate build files in the NuGet Package Manager for Linux and Mac.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-0976?
CVE-2019-0976 is a medium-severity missing authorization vulnerability in Microsoft Nuget, published on 16 May 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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"), aka 'NuGet Package Manager Tampering Vulnerability'.
Which versions are affected by CVE-2019-0976?
2 open source packages ship an affected version, including NuGet.Commands. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
NuGet.Commands NuGet | From 5.0.0 | 5.0.2 |
NuGet.Commands NuGet | From 5.0.0 | 5.0.2 |
Products include Microsoft Nuget.
How do I fix CVE-2019-0976?
Upgrade NuGet.Commands to 5.0.2 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2019-0976 being exploited?
There is no known exploitation of CVE-2019-0976 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Nuget
Sources
Also known as GHSA-3hcm-6fjc-47qq.