CVE-2021-21905 : What You Need to Know
Learn about CVE-2021-21905, a high severity stack-based buffer overflow vulnerability in Garrett Metal Detectors iC Module CMA Version 5.0, with a CVSS base score of 8.2. Understand the impact, affected systems, and mitigation steps.
A stack-based buffer overflow vulnerability has been discovered in Garrett Metal Detectors iC Module CMA Version 5.0. The vulnerability exists in how the CMA readfile function is utilized in various locations, potentially leading to unauthorized access and manipulation of the device.
Understanding CVE-2021-21905
This section provides insights into the nature and impact of the CVE-2021-21905 vulnerability.
What is CVE-2021-21905?
The CVE-2021-21905 vulnerability is a stack-based buffer overflow issue in the Garrett Metal Detectors iC Module CMA Version 5.0. Attackers can exploit this vulnerability to execute arbitrary code or crash the device.
The Impact of CVE-2021-21905
The vulnerability poses a high severity risk with a CVSS base score of 8.2. It can result in unauthorized access, data integrity violations, and service disruptions.
Technical Details of CVE-2021-21905
This section details the technical aspects of the CVE-2021-21905 vulnerability.
Vulnerability Description
The vulnerability arises due to the improper handling of data input by the CMA readfile function, allowing attackers to overflow the buffer and execute malicious actions.
Affected Systems and Versions
Garrett Metal Detectors iC Module CMA Version 5.0 is confirmed to be affected by this vulnerability, potentially impacting devices utilizing this version.
Exploitation Mechanism
Attackers can exploit the CVE-2021-21905 vulnerability by sending specially crafted commands via the authenticated CLI interface over TCP port 6877.
Mitigation and Prevention
This section outlines the steps to mitigate and prevent exploitation of the CVE-2021-21905 vulnerability.
Immediate Steps to Take
Users are advised to restrict network access to the Garrett iC Module, implement strong authentication mechanisms, and monitor network traffic for any suspicious activities.
Long-Term Security Practices
Regularly update the firmware of the affected devices, conduct security assessments, and educate users on secure device management practices to enhance overall security posture.
Patching and Updates
Vendor patches or updates addressing the CVE-2021-21905 vulnerability may be available. It is crucial to apply these patches promptly to secure the affected systems and prevent potential exploitation.