CVE-2023-36805HighCVSS 7.0

Windows MSHTML Platform Security Feature Bypass Vulnerability

Published
September 12, 2023
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2023-36805 →

📋 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. For example, when the score indicates that the Attack Vector is Local and User Interaction is Required, this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and open a specially crafted file from a website which leads to a local attack on their computer.

According to the CVSS metrics, successful exploitation of this vulnerability could lead to major loss of confidentiality (C:H), integrity (I:H), and availability (A:H). What does that mean for this vulnerability? An attacker who successfully exploited this vulnerability could gain high privileges, which include read, write, and delete functionality.

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 gather information specific to the environment of the targeted component.

The Security Updates table indicates that this vulnerability affects all supported versions of Microsoft Windows. Why are IE Cumulative updates listed for Windows Server 2008 R2, Windows Server 2012, and Windows Server 2012 R2? While Microsoft has announced retirement of the Internet Explorer 11 application on certain platforms and the Microsoft Edge Legacy application is deprecated, the underlying MSHTML, EdgeHTML, and scripting platforms are still supported. The MSHTML platform is used by Internet Explorer mode in Microsoft Edge as well as other applications through WebBrowser control. The EdgeHTML platform is used by WebView and some UWP applications. The scripting platforms are used by MSHTML and EdgeHTML but can also be used by other legacy applications. Updates to address vulnerabilities in the MSHTML platform and scripting engine are included in the IE Cumulative Updates; EdgeHTML and Chakra changes are not applicable to those platforms. To stay fully protected, we recommend that customers who install Security Only updates install the IE Cumulative updates for this vulnerability.

🎯 Affected products29

  • 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 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 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 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)

✅ Remediation

KB5030214 (Security Update) — fixed build 10.0.17763.4851 KB5030216 (Security Update) — fixed build 10.0.20348.1970 KB5030325 (AzureHotpatch) — fixed build 10.0.20348.1964 KB5030217 (Security Update) — fixed build 10.0.22000.2416 KB5030211 (Security Update) — fixed build 10.0.19044.3448 KB5030219 (Security Update) — fixed build 10.0.22621.2283 KB5030211 (Security Update) — fixed build 10.0.19045.3448 KB5030220 (Security Update) — fixed build 10.0.10240.20162 KB5030213 (Security Update) — fixed build 10.0.14393.6252 KB5030265 (Monthly Rollup) — fixed build 6.1.7601.26713 KB5030261 (Security Only) — fixed build 6.1.7601.26713 KB5030209 (IE Cumulative) — fixed build 1.001 KB5030278 (Monthly Rollup) — fixed build 6.2.9200.24462 KB5030279 (Security Only) — fixed build 6.2.9200.24462 KB5030269 (Monthly Rollup) — fixed build 6.3.9600.21563 KB5030287 (Security Only) — fixed build 6.3.9600.21563

🔗 References (31)