CVE-2019-0995 : What You Need to Know
Learn about CVE-2019-0995, a security feature bypass vulnerability in Internet Explorer 11 that allows attackers to exploit urlmon.dll, potentially leading to unauthorized access and security breaches.
A security feature bypass vulnerability exists in Internet Explorer 11 due to improper handling of certain Mark of the Web queries in urlmon.dll.
Understanding CVE-2019-0995
What is CVE-2019-0995?
This vulnerability allows attackers to bypass security features by exploiting a flaw in Internet Explorer 11's handling of specific queries.
The Impact of CVE-2019-0995
This vulnerability, also known as 'Internet Explorer Security Feature Bypass Vulnerability,' can potentially lead to security breaches and unauthorized access to sensitive information.
Technical Details of CVE-2019-0995
Vulnerability Description
The vulnerability in urlmon.dll enables attackers to bypass security features by manipulating certain Mark of the Web queries within Internet Explorer 11.
Affected Systems and Versions
- Internet Explorer 11 on Windows Server 2016
- Internet Explorer 11 on Windows 10 Versions 1607, 1703, 1709, 1803, 1809, and 1903 for various systems
- Windows Server 2019
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting malicious Mark of the Web queries to trick Internet Explorer 11 into bypassing security checks.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by Microsoft promptly
- Consider using alternative browsers until the patch is applied
Long-Term Security Practices
- Regularly update Internet Explorer and other software to the latest versions
- Implement strong web security practices and educate users on safe browsing habits
Patching and Updates
Microsoft has released security updates to address this vulnerability. Ensure that all affected systems are updated with the latest patches.