CVE-2023-21548CriticalCVSS 8.1

Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability

Published
January 10, 2023
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2023-21548 →

📋 Description

How could an attacker exploit the vulnerability? To exploit this vulnerability, an attacker would need to send a specially crafted malicious SSTP packet to a SSTP server. This could result in remote code execution on the server side.

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to win a race condition.

🎯 Affected products40

  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 20H2 for 32-bit Systems
  • Windows 10 Version 20H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for 32-bit Systems
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems
  • Windows 10 Version 22H2 for 32-bit Systems
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 11 Version 22H2 for ARM64-based Systems
  • Windows 11 Version 22H2 for x64-based Systems
  • Windows 11 version 21H2 for ARM64-based Systems
  • Windows 11 version 21H2 for x64-based Systems
  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for x64-based systems
  • Windows RT 8.1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
  • +10 more not shown

✅ Remediation

KB5022286 (Security Update) — fixed build 10.0.17763.3887 KB5022291 (Security Update) — fixed build 10.0.20348.1487 KB5022282 (Security Update) — fixed build 10.0.19042.2486 KB5022287 (Security Update) — fixed build 10.0.22000.1455 KB5022282 (Security Update) — fixed build 10.0.19044.2486 KB5022303 (Security Update) — fixed build 10.0.22621.1105 KB5022282 (Security Update) — fixed build 10.0.19045.2486 KB5022297 (Security Update) — fixed build 10.0.10240.19685 KB5022289 (Security Update) — fixed build 10.0.14393.5648 KB5022338 (Monthly Rollup) — fixed build 6.1.7601.26321 KB5022339 (Security Only) — fixed build 6.1.7601.26321 KB5022352 (Monthly Rollup) — fixed build 6.3.9600.20778 KB5022346 (Security Only) — fixed build 6.3.9600.20778 KB5022340 (Monthly Rollup) — fixed build 6.0.6003.21872 KB5022353 (Security Only) — fixed build 6.0.6003.21872 KB5022348 (Monthly Rollup) — fixed build 6.2.9200.24075 KB5022343 (Security Only) — fixed build 6.2.9200.24075

🔗 References (27)