CVE-2020-1286: Windows Shell Remote Code Execution Vulnerability
Overview
- Severity
- High (CVSS 7.8)
- CVSS Vector
- CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
- Category
- Remote Code Execution
- Exploit Status
- Not Exploited
- Exploitation Likelihood
- Less Likely
- Patch Tuesday
- 2020-Jun
- Released
- 2020-06-09
- EPSS Score
- 35.27% (percentile: 97.0%)
Description
A remote code execution vulnerability exists when the Windows Shell does not properly validate file paths.
An attacker who successfully exploited this vulnerability could run arbitrary code in the context of the current user. If the current user is logged on as an administrator, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with elevated privileges. Users whose accounts are configured to have fewer privileges on the system could be less impacted than users who operate with administrative privileges.
To exploit the vulnerability, an attacker must entice a user to open a specially crafted file. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and then convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force a user to visit the website. Instead, an attacker would have to convince a user to click a link and open the specially crafted file.
This security update addresses the vulnerability by ensuring the Windows Shell properly validates file paths.
Affected Products (24)
Windows
- Windows 10 Version 2004 for 32-bit Systems
- Windows 10 Version 1803 for 32-bit Systems
- Windows 10 Version 1803 for x64-based Systems
- Windows Server, version 1803 (Server Core Installation)
- Windows 10 Version 1803 for ARM64-based Systems
- Windows 10 Version 1809 for 32-bit Systems
- Windows 10 Version 1809 for x64-based Systems
- Windows 10 Version 1809 for ARM64-based Systems
- Windows Server 2019
- Windows Server 2019 (Server Core installation)
- Windows 10 Version 1909 for 32-bit Systems
- Windows 10 Version 1909 for x64-based Systems
- Windows 10 Version 1909 for ARM64-based Systems
- Windows Server, version 1909 (Server Core installation)
- Windows 10 Version 1709 for 32-bit Systems
- Windows 10 Version 1709 for x64-based Systems
- Windows 10 Version 1709 for ARM64-based Systems
- Windows 10 Version 1903 for 32-bit Systems
- Windows 10 Version 1903 for x64-based Systems
- Windows 10 Version 1903 for ARM64-based Systems
- Windows Server, version 1903 (Server Core installation)
- Windows 10 Version 2004 for x64-based Systems
- Windows 10 Version 2004 for ARM64-based Systems
- Windows Server, version 2004 (Server Core installation)
Security Updates (5)
Acknowledgments
Hidetake Jo - Microsoft
Revision History
- 2020-06-09: Information published.