ALSA-2023:4057 - .NET 7.0 security, bug fix, and enhancement update
Summary
ALSA-2023:4057: Important: .NET 7.0 security, bug fix, and enhancement update. Affects aspnetcore-runtime-7.0 versions < 7.0.9-1.el9_2. Fixed in 7.0.9-1.el9_2. How to fix ↓
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Background
The .NET framework is a managed-software framework that implements a subset of the .NET framework APIs and includes a Common Language Runtime (CLR) implementation. It provides a platform for developing and running applications on various operating systems.
The vulnerability affects the dotnet7.0 package in AlmaLinux 9. This package includes the SDK and Runtime components of .NET 7.0. The vulnerability can potentially lead to a race condition in the Core SignInManager<TUser> PasswordSignInAsync method.
Vulnerability Detail
The vulnerability (CVE-2023-33170) in the Core SignInManager<TUser> PasswordSignInAsync method of .NET 7.0 can be exploited due to a race condition. This could allow an attacker to bypass authentication or gain unauthorized access to sensitive information. The impact of this vulnerability can vary depending on the specific implementation and usage of the affected method.
How To Fix
Minimum fixed version
7.0.9-1.el9_2
This is the first release that contains the fix.
sudo dnf update aspnetcore-runtime-7.0Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. It is recommended to apply the fix by upgrading to the fixed versions of the affected packages.
Conclusion
The vulnerability in .NET 7.0 can potentially lead to a race condition in the Core SignInManager<TUser> PasswordSignInAsync method. It is recommended to upgrade the affected packages to the fixed versions to mitigate any potential risks. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for aspnetcore-runtime-7.0 →
FAQ
The impact of this vulnerability can vary depending on the specific implementation and usage of the affected method. It could potentially allow an attacker to bypass authentication or gain unauthorized access to sensitive information.
You can use Vulert Playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities without requiring access to the code or installation.
There are no known exploits for this vulnerability at the time of this advisory. However, it is important to apply the fix as soon as possible to mitigate any potential risks.
For more details about the vulnerability, including the impact, CVSS score, acknowledgments, and related information, refer to the CVE page(s) listed in the References section of the original advisory.
The fixed versions of the affected packages can be obtained from the AlmaLinux repository or the official .NET website. Make sure to upgrade to dotnet7.0 SDK 7.0.109 and Runtime 7.0.9.
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