CVE-2020-16905 : What You Need to Know
Learn about CVE-2020-16905, an elevation of privilege vulnerability in Windows Error Reporting (WER) that affects various Windows versions. Find out the impact, affected systems, and mitigation steps.
Windows Error Reporting Elevation of Privilege Vulnerability was published on October 16, 2020, by Microsoft. The vulnerability affects various versions of Windows, potentially allowing attackers to elevate privileges.
Understanding CVE-2020-16905
This CVE identifies an elevation of privilege vulnerability in Windows Error Reporting (WER) that could be exploited by attackers to gain higher system access.
What is CVE-2020-16905?
An elevation of privilege vulnerability exists in Windows Error Reporting (WER) when handling and executing files. Attackers could exploit this vulnerability to elevate their privileges by running a specially crafted application.
The Impact of CVE-2020-16905
If successfully exploited, attackers could gain greater access to sensitive information and system functionality. Microsoft addressed this vulnerability by improving how WER handles and executes files.
Technical Details of CVE-2020-16905
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in Windows Error Reporting (WER) allows attackers to elevate their privileges by manipulating file execution.
Affected Systems and Versions
- Windows 10 Version 1803, 1809, 1909, 1507, 1607, 1709, 1903, 2004
- Windows Server 2019, 2016
- Windows Server versions 1909, 1903, 2004
Exploitation Mechanism
To exploit the vulnerability, attackers need to run a specially crafted application that leverages the flaw in WER's file handling.
Mitigation and Prevention
Protecting systems from CVE-2020-16905 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply the security update provided by Microsoft promptly.
- Monitor for any unusual system behavior that could indicate exploitation.
Long-Term Security Practices
- Regularly update systems with the latest security patches.
- Implement strong access controls and least privilege principles.
Patching and Updates
Microsoft has released a security update to address the vulnerability. Ensure all affected systems are updated to the latest patch.