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GHSA-6qmf-mmc7-6c2p

HighCVSS 7.1 / 10
Published Jun 14, 2023·Last modified Jun 3, 2024
Affected Components(0)

No affected components available

Description

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

Risk Scores
Base Score
7.1

The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker needs basic access or low-level privileges. The attacker needs the user to perform some action, like clicking a link. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.

Threat Intelligence
6.5

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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