Improper Access Control The advisory has been revoked - it doesn't affect any version of package microsoft.netcore.app.runtime.win-x64  (opens in a new tab)


Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.15% (52nd percentile)

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  • Snyk IDSNYK-DOTNET-MICROSOFTNETCOREAPPRUNTIMEWINX64-6149424
  • published10 Jan 2024
  • disclosed9 Jan 2024
  • creditVishal Mishra, Anita Gaud, Stav Nir

Introduced: 9 Jan 2024

CVE-2024-0057  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade Microsoft.NETCore.App.Runtime.win-x64 to version 6.0.26, 7.0.15, 8.0.1 or higher.

Amendment

This was deemed not a vulnerability.

Overview

Affected versions of this package are vulnerable to Improper Access Control when using X.509 chain building APIs but do not completely validate the X.509 certificate due to a logic flaw. An attacker could present an arbitrary untrusted certificate with malformed signatures, triggering a bug in the framework. The framework will correctly report that X.509 chain building failed, but it will return an incorrect reason code for the failure. Applications which utilize this reason code to make their own chain building trust decisions may inadvertently treat this scenario as a successful chain build. This could allow an adversary to subvert the app's typical authentication logic.