CVE-2024-0057HighCVSS 9.1

NET, .NET Framework, and Visual Studio Security Feature Bypass Vulnerability

Published
January 9, 2024
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2024-0057 →

📋 Description

What kind of security feature could be bypassed by successfully exploiting this vulnerability? A security feature bypass vulnerability exists when Microsoft .NET Framework-based applications use 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.

How could an attacker exploit this vulnerability? An attacker could exploit this by creating a specially crafted X.509 certificate that intentionally introduce or intentionally induces a chain building failure.

Is there are reason for such a high CVSS score? Yes, the CVSS scoring guide recommends using a reasonable worst-case implementation scenario when scoring vulnerabilities in software libraries. Vulnerabilites in .NET Framework and similar products are scored with this advice in mind. The score for your implmentation this product may not be as severe, however we recommend installing the update as soon as possible in an abundance of caution. Please see the CVSS user guide for more information.

🎯 Affected products73

  • .NET 6.0
  • .NET 7.0
  • .NET 8.0
  • Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2
  • Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
  • Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2
  • Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1607 for 32-bit Systems
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1607 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016 (Server Core installation)
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation)
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for 32-bit Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for ARM64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for 32-bit Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for ARM64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for ARM64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation)
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022 (Server Core installation)
  • +43 more not shown

✅ Remediation

KB5033741 (Security Update) — fixed build 8.0.1 KB5033734 (Security Update) — fixed build 7.0.15 KB5033733 (Security Update) — fixed build 6.0.26 KBRelease Notes (Security Update) — fixed build 17.2.23 KBRelease Notes (Security Update) — fixed build 16.11.34 KBRelease Notes (Security Update) — fixed build 17.4.15 KBRelease Notes (Security Update) — fixed build 17.6.11 KBRelease Notes (Security Update) — fixed build 17.8.4 KBRelease Notes (Security Update) — fixed build 5.11.6.0 KBRelease Notes (Security Update) — fixed build 17.4.3.0 KBRelease Notes (Security Update) — fixed build 17.6.2.0 KBRelease Notes (Security Update) — fixed build 17.8.1.0 KBRelease Notes (Security Update) — fixed build 7.2.18 KBRelease Notes (Security Update) — fixed build 7.3.11 KBRelease Notes (Security Update) — fixed build 7.4.2 KB5033910 (Security Update) — fixed build 4.8.04690.02 KB5034277 (Monthly Rollup) — fixed build 4.8.04690.02 KB5034269 (Security Only) — fixed build 4.8.04690.01 KB5034278 (Monthly Rollup) — fixed build 4.8.04690.02 KB5034279 (Monthly Rollup) — fixed build 4.8.04690.02 KB5034273 (Security Update) — fixed build 4.8.04690.02 KB5034272 (Security Update) — fixed build 4.8.04690.02 KB5034276 (Security Update) — fixed build 4.8.04690.02 KB5034274 (Security Update) — fixed build 4.8.04690.02 KB5034275 (Security Update) — fixed build 4.8.04690.02 KB5034273 (Security Update) — fixed build 4.7.04081.03 KB5034119 (Security Update) — fixed build 10.0.14393.6614 KB5034269 (Security Only) — fixed build 4.7.04081.02 KB5034278 (Monthly Rollup) — fixed build 4.7.04081.03 KB5034279 (Monthly Rollup) — fixed build 3.0.50727.8976 KB5034272 (Security Update) — fixed build 4.8.09214.01 KB5034276 (Security Update) — fixed build 4.8.09214.01 KB5034274 (Security Update) — fixed build 4.8.09214.01 KB5033920 (Security Update) — fixed build 4.8.09214.01 KB5034275 (Security Update) — fixed build 4.8.09214.01 KB5034280 (Monthly Rollup) — fixed build 3.0.50727.8976 KB5034270 (Security Only) — fixed build 3.0.50727.8976

🔗 References (53)