CVE-2023-29337: NuGet Client Remote Code Execution Vulnerability
Description Microsoft is releasing this security advisory to provide information about a vulnerability in .NET and NuGet on Linux. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.
A vulnerability exists in .NET 6.0, .NET 7.0 and NuGet(nuget.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement) where a potential race condition that can lead to a symlink attack on Linux. Non-Linux platforms are not affected.
Affected software This issue only affects Linux systems.
NuGet & NuGet Packages
- Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 6.6.0 version or earlier. - Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 6.5.0 version or earlier. - Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 6.4.1 version or earlier. - Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 6.3.2 version or earlier. - Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 6.2.3 version or earlier. - Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 6.0.4 version or earlier. - Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 5.11.4
.NET SDK(s)
- Any .NET SDK 7.0.106 or earlier, or 7.0.303 or earlier - Any .NET SDK 6.0.117 or earlier, or 6.0.312 or earlier, or 6.0.409 or earlier.
Patches To fix the issue, please install the latest version of .NET 6.0 or .NET 7.0 and NuGet (NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, NuGet.PackageManagement versions). If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs.
- If you're using NuGet.exe 6.6.0 or lower, you should download and install 6.6.1 from https://dist.nuget.org/win-x86-commandline/v6.6.1/nuget.exe. - If you're using NuGet.exe 6.5.0 or lower, you should download and install 6.5.1 from https://dist.nuget.org/win-x86-commandline/v6.5.1/nuget.exe. - If you're using NuGet.exe 6.4.1 or lower, you should download and install 6.4.2 from https://dist.nuget.org/win-x86-commandline/v6.4.2/nuget.exe. - If you're using NuGet.exe 6.3.2 or lower, you should download and install 6.3.3 from https://dist.nuget.org/win-x86-commandline/v6.3.3/nuget.exe. - If you're using NuGet.exe 6.2.3 or lower, you should download and install 6.2.4 from https://dist.nuget.org/win-x86-commandline/v6.2.4/nuget.exe. - If you're using NuGet.exe 6.0.4 or lower, you should download and install 6.0.5 from https://dist.nuget.org/win-x86-commandline/v6.0.5/nuget.exe. - If you're using NuGet.exe 5.11.4 or lower, you should download and install 5.11.5 from https://dist.nuget.org/win-x86-commandline/v5.11.5/nuget.exe. - If you're using .NET 7.0, you should download and install Runtime 7.0.7 or SDK 7.0.107 or SDK 7.0.304 from https://dotnet.microsoft.com/download/dotnet-core/7.0.
- If you're using .NET 7.0, you should download and install Runtime 7.0.7 or SDK 7.0.107 or SDK 7.0.304 from https://dotnet.microsoft.com/download/dotnet-core/7.0. - If you're using .NET 6.0, you should download and install Runtime 6.0.18 or SDK 6.0.118 or SDK 6.0.312 from https://dotnet.microsoft.com/download/dotnet-core/6.0.
Other details Announcement for this issue can be found at https://github.com/NuGet/Announcements/issues/69
MSRC details for this can be found at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29337
Other sources
A vulnerability was found in dotnet. This issue exists in NuGet where a potential race condition can lead to a symlink attack.
NuGet Client Remote Code Execution Vulnerability
Affected Software
Remediation
Event History
Parent advisories
This vulnerability appears in the following advisories.
Frequently Asked Questions
What is CVE-2023-29337?
CVE-2023-29337 is a vulnerability in NuGet that can lead to remote code execution due to a potential race condition and symlink attack.
Which software versions are affected by CVE-2023-29337?
Versions 6.5.0, 6.2.3, 6.6.0, 5.11.4, 6.0.4, and 6.4.1 of Microsoft NuGet are affected by CVE-2023-29337.
What is the severity of CVE-2023-29337?
CVE-2023-29337 has a severity rating of 7.1, which is considered high.
How can I fix CVE-2023-29337?
To fix CVE-2023-29337, you should download and apply the patches provided by Microsoft. You can find the patches and further instructions at the following URLs: [NuGet 6.5.0](https://www.nuget.org/downloads), [NuGet 6.2.3](https://www.nuget.org/downloads), [NuGet 6.6.0](https://www.nuget.org/downloads), [NuGet 5.11.4](https://www.nuget.org/downloads), [NuGet 6.0.4](https://www.nuget.org/downloads), [NuGet 6.4.1](https://www.nuget.org/downloads).
Where can I find more information about CVE-2023-29337?
You can find more information about CVE-2023-29337 at the following references: [Bugzilla: 2214906](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2214906), [Bugzilla: 2214908](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2214908), [Bugzilla: 2214907](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2214907).