CVE-2020-16890 : What You Need to Know
Learn about CVE-2020-16890, a Windows Kernel Elevation of Privilege Vulnerability affecting various Windows versions. Find mitigation steps and the impact of this high-severity vulnerability.
A Windows Kernel Elevation of Privilege Vulnerability was identified by Microsoft on October 13, 2020. The vulnerability affects various versions of Windows, allowing attackers to run arbitrary code in kernel mode.
Understanding CVE-2020-16890
This CVE involves an elevation of privilege vulnerability in the Windows kernel, enabling attackers to exploit memory objects improperly.
What is CVE-2020-16890?
An attacker could exploit this vulnerability to execute arbitrary code in kernel mode, potentially leading to unauthorized program installations, data manipulation, or user account creation with full privileges.
The Impact of CVE-2020-16890
The vulnerability poses a high severity risk, with a CVSS base score of 7.8. Attackers could gain significant control over affected systems, compromising data integrity and system security.
Technical Details of CVE-2020-16890
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The flaw arises from the Windows kernel's inadequate handling of memory objects, allowing attackers to execute malicious code in kernel mode.
Affected Systems and Versions
- Windows 10 Version 1803, 1809, 1909, 2004
- Windows Server 2019, 1903, 2004
Exploitation Mechanism
To exploit this vulnerability, attackers need system access to run a specially crafted application that can take control of the affected system.
Mitigation and Prevention
Protecting systems from CVE-2020-16890 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Apply the security update provided by Microsoft promptly.
- Monitor system logs for any suspicious activities.
- Restrict user permissions to minimize the impact of potential attacks.
Long-Term Security Practices
- Regularly update systems with the latest security patches.
- Conduct security audits and penetration testing to identify vulnerabilities.
- Educate users on safe computing practices to prevent social engineering attacks.
Patching and Updates
Microsoft has released an update to address this vulnerability by enhancing how the Windows kernel manages memory objects.