CVE-2019-19820 : What You Need to Know
Learn about CVE-2019-19820, a vulnerability in Kyrol Internet Security 9.0.6.9's kyrld.sys driver, enabling attackers to gain elevated privileges, execute arbitrary code, and cause denial-of-service attacks. Find out how to mitigate and prevent this security risk.
Kyrol Internet Security 9.0.6.9 has a vulnerability in its kyrld.sys driver's IOCTL Handling, allowing attackers to gain elevated privileges, execute arbitrary code, and cause denial-of-service attacks.
Understanding CVE-2019-19820
This CVE involves an invalid pointer vulnerability in the Kyrol Internet Security 9.0.6.9 driver, leading to potential security risks.
What is CVE-2019-19820?
The vulnerability in the kyrld.sys driver of Kyrol Internet Security 9.0.6.9 enables attackers to exploit IOCTL Handling, resulting in privilege escalation, denial-of-service, and code execution in usermode.
The Impact of CVE-2019-19820
The misuse of the METHOD_NEITHER mechanism at address 0x9C402405 allows attackers to perform a read primitive operation, potentially leading to severe consequences such as elevated privileges and arbitrary code execution.
Technical Details of CVE-2019-19820
Kyrol Internet Security 9.0.6.9's vulnerability requires a detailed examination to understand its implications.
Vulnerability Description
The vulnerability arises from the incorrect handling of IOCTL requests in the kyrld.sys driver, leading to an invalid pointer vulnerability that can be exploited by attackers.
Affected Systems and Versions
- Product: Kyrol Internet Security 9.0.6.9
- Vendor: Kyrol
- Version: 9.0.6.9
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating IOCTL requests in the kyrld.sys driver, allowing them to gain elevated privileges, execute arbitrary code, and conduct denial-of-service attacks.
Mitigation and Prevention
Addressing CVE-2019-19820 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Update Kyrol Internet Security to the latest version to patch the vulnerability.
- Monitor system logs for any suspicious activities that could indicate exploitation attempts.
- Implement least privilege access to limit the impact of potential attacks.
Long-Term Security Practices
- Conduct regular security audits and penetration testing to identify and address vulnerabilities proactively.
- Educate users and IT staff on best practices for cybersecurity to enhance overall awareness and preparedness.
Patching and Updates
- Stay informed about security updates and patches released by Kyrol for Kyrol Internet Security to ensure the system is protected against known vulnerabilities.