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CVE-2021-21908 : Security Advisory and Response

Learn about CVE-2021-21908, a medium severity vulnerability affecting Garrett Metal Detectors iC Module CMA Version 5.0. Find out how attackers can delete arbitrary files using specially-crafted command line arguments.

This article provides detailed information about CVE-2021-21908, a vulnerability affecting Garrett Metal Detectors iC Module CMA Version 5.0.

Understanding CVE-2021-21908

CVE-2021-21908 is a vulnerability that allows an authenticated attacker to delete arbitrary files by providing specially-crafted command line arguments to the handle_delete function.

What is CVE-2021-21908?

The vulnerability in Garrett Metal Detectors iC Module CMA Version 5.0 arises from the lack of validation of command line arguments passed to the handle_delete function. This oversight enables attackers to conduct directory traversal attacks and delete files.

The Impact of CVE-2021-21908

The impact of CVE-2021-21908 is rated as medium severity with a CVSS base score of 6. It poses a risk to the integrity of the affected system as authenticated attackers with high privileges can delete files.

Technical Details of CVE-2021-21908

CVE-2021-21908 is classified as CWE-22, indicating an improper limitation of pathname vulnerability that allows path traversal attacks.

Vulnerability Description

Specially-crafted command line arguments can lead to arbitrary file deletion due to the lack of input validation in the handle_delete function of Garrett Metal Detectors iC Module CMA Version 5.0.

Affected Systems and Versions

The vulnerability impacts Garrett Metal Detectors iC Module CMA Version 5.0.

Exploitation Mechanism

Authenticated attackers can exploit this vulnerability by providing malicious command line arguments, enabling them to bypass directory traversal protections and delete files.

Mitigation and Prevention

To address CVE-2021-21908, users and administrators should take immediate and long-term security measures to mitigate the risk.

Immediate Steps to Take

        Apply security patches and updates provided by the vendor to fix the vulnerability promptly.
        Monitor file deletion activities and review command line arguments to detect suspicious behavior.
        Restrict user privileges to minimize the impact of potential attacks.

Long-Term Security Practices

        Implement secure coding practices to validate user inputs and prevent directory traversal vulnerabilities.
        Conduct regular security assessments and penetration testing to identify and remediate vulnerabilities proactively.

Patching and Updates

Regularly update the Garrett Metal Detectors iC Module CMA software to ensure that the latest security patches are applied to prevent exploitation of known vulnerabilities.

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