CVE-2021-42993 : Security Advisory and Response
Learn about CVE-2021-42993 affecting FlexiHub For Windows versions above 2.0.4340 below 5.3.14268. Find out how this Integer Overflow vulnerability exposes systems to code execution and denial of service attacks.
FlexiHub For Windows is affected by an Integer Overflow vulnerability that allows local attackers to execute arbitrary code in kernel mode or cause denial of service.
Understanding CVE-2021-42993
What is CVE-2021-42993?
FlexiHub For Windows versions above 2.0.4340 and below 5.3.14268 are vulnerable to Integer Overflow, potentially enabling attackers to trigger memory corruption and OS crashes.
The Impact of CVE-2021-42993
The vulnerability permits local attackers to run malicious code in kernel mode or disrupt system operation through crafted I/O Request Packets.
Technical Details of CVE-2021-42993
Vulnerability Description
FlexiHub For Windows contains an Integer Overflow flaw in IOCTL Handler 0x22001B, which manifests in versions 2.0.4340 through 5.3.14268.
Affected Systems and Versions
- Product: FlexiHub For Windows
- Versions: above 2.0.4340 below 5.3.14268
Exploitation Mechanism
The vulnerability is exploited through specially crafted I/O Request Packets, enabling local attackers to execute arbitrary code in kernel mode or lead to a denial of service.
Mitigation and Prevention
Immediate Steps to Take
- Update FlexiHub For Windows to a patched version.
- Implement robust security measures to prevent unauthorized access.
Long-Term Security Practices
- Regularly monitor for security updates and patches.
- Conduct security audits to identify and rectify vulnerabilities proactively.
Patching and Updates
Ensure timely installation of security patches and upgrades to mitigate the risks associated with CVE-2021-42993.