CVE-2021-43637 : Vulnerability Insights and Analysis
Learn about CVE-2021-43637 affecting Amazon WorkSpaces agent below v1.0.1.1537. Understand the impact, exploitation, and mitigation steps to secure your systems.
Amazon WorkSpaces agent is affected by Buffer Overflow, potentially allowing local attackers to execute arbitrary code or cause denial of service.
Understanding CVE-2021-43637
What is CVE-2021-43637?
The vulnerability lies in the IOCTL Handler 0x22001B of the Amazon WorkSpaces agent versions below v1.0.1.1537, enabling local attackers to execute arbitrary code in kernel mode or trigger a denial of service by exploiting specially crafted I/O Request Packets.
The Impact of CVE-2021-43637
The vulnerability could lead to memory corruption, OS crashes, and potential execution of malicious code by attackers.
Technical Details of CVE-2021-43637
Vulnerability Description
- Buffer Overflow vulnerability affecting the Amazon WorkSpaces agent
Affected Systems and Versions
- Amazon WorkSpaces agent versions below v1.0.1.1537
Exploitation Mechanism
- Attackers exploit a specially crafted I/O Request Packet to execute arbitrary code or trigger denial of service
Mitigation and Prevention
Immediate Steps to Take
- Upgrade Amazon WorkSpaces agent to version v1.0.1.1537 or higher
- Implement least privilege access policies
Long-Term Security Practices
- Regularly update and patch all software components
- Conduct security assessments and penetration testing
Patching and Updates
- Apply security patches promptly to protect against known vulnerabilities