CVE-2023-21808CriticalCVSS 8.4

.NET and Visual Studio Remote Code Execution Vulnerability

Published
February 14, 2023
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2023-21808 →

📋 Description

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution? The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.

According to the CVSS metrics, there are multiple scores. Why does the CVE have different scores and different severities for different products? There are different scores depending on the product due to the way symbols are read and parsed. Visual Studio has the ability to automatically query symbol servers while .NET only uses symbols present on the disk, requiring the user to manually query the symbol.

🎯 Affected products71

  • .NET 6.0
  • .NET 7.0
  • 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 1607 for 32-bit Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1607 for x64-based Systems
  • 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 20H2 for 32-bit Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 20H2 for ARM64-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 2016
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2016 (Server Core installation)
  • 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
  • +41 more not shown

✅ Remediation

KBRelease Notes (Security Update) — fixed build 16.11.24 KBRelease Notes (Security Update) — fixed build 17.0.19 KBRelease Notes (Security Update) — fixed build 15.9.52 KBRelease Notes (Security Update) — fixed build 17.4.5 KBRelease Notes (Security Update) — fixed build 17.2.13 KB5025792 (Security Update) — fixed build 14.0.27555.0 KB5026610 (Security Update) — fixed build 12.0.40700.0 KB5023286 (Security Update) — fixed build 7.0.3 KB5023288 (Security Update) — fixed build 6.0.14 KBRelease Notes (Security Update) — fixed build 7.2.10 KB5022782 (Security Update) — fixed build 10.0.04614.06 KB5022735 (Security Update) — fixed build 10.0.04614.06 KB5022727 (Security Update) — fixed build 10.0.04614.06 KB5022730 (Security Update) — fixed build 10.0.4614.06 KB5022728 (Security Update) — fixed build 10.0.04614.06 KB5022728 (Monthly Rollup) — fixed build 10.0.04614.06 KB5022782 (Security Update) — fixed build 10.0.04038.03 KB5022731 (Monthly Rollup) — fixed build 4.7.04614.08 KB5022783 (Security Only) — fixed build 4.7.04038.05 KB5022732 (Monthly Rollup) — fixed build 4.7.04038.03 KB5022784 (Security Only) — fixed build 4.7.04038.02 KB5022733 (Monthly Rollup) — fixed build 4.8.04614.05 KB5022785 (Security Only) — fixed build 4.8.04614.03 KB5022731 (Monthly Rollup) — fixed build 4.8.4614.08 KB5022783 (Security Only) — fixed build 4.8.4614.07 KB5022733 (Monthly Rollup) — fixed build 4.7.04038.03 KB5022785 (Security Only) — fixed build 4.7.04038.02 KB5022732 (Monthly Rollup) — fixed build 4.8.04614.05 KB5022784 (Security Only) — fixed build 4.8.04614.03 KB5022735 (Security Update) — fixed build 10.0.09139.02 KB5022727 (Security Update) — fixed build 10.0.09139.02 KB5022730 (Security Update) — fixed build 10.0.09139.02 KB5022728 (Security Update) — fixed build 10.0.09139.02 KB5022497 (Security Update) — fixed build 10.0.09139.02 KB5022729 (Security Update) — fixed build 10.0.09139.02 KB5022734 (Monthly Rollup) — fixed build 4.7.04038.06 KB5022786 (Security Only) — fixed build 4.7.4038.05 KB5022858 (Security Update) — fixed build 10.0.10240.19747 KB5022838 (Security Update) — fixed build 10.0.14393.5717 KB5022503 (Security Update) — fixed build 10.0.04614.05 KB5022729 (Security Update) — fixed build 10.0.04614.06

🔗 References (62)