CVE-2020-17407 : Vulnerability Insights and Analysis

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microhard Bullet-LTE prior to v1.2.0-r1112 without requiring authentication. The flaw lies in the handling of authentication headers, leading to a stack-based buffer overflow.

Understanding CVE-2020-17407

This CVE entry describes a critical vulnerability in Microhard Bullet-LTE devices that can be exploited remotely to execute unauthorized code.

What is CVE-2020-17407?

The vulnerability in Microhard Bullet-LTE devices allows attackers to run arbitrary code without authentication by exploiting a flaw in handling authentication headers. This can result in unauthorized access and control of the affected system.

The Impact of CVE-2020-17407

The impact of this vulnerability is rated as critical with a CVSS base score of 9.8. It poses high risks to confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2020-17407

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability is a stack-based buffer overflow (CWE-121) that arises from inadequate validation of user-supplied data length before copying it to a fixed-length buffer. This allows attackers to execute code in the context of root.

Affected Systems and Versions

Product: Bullet-LTE
Vendor: Microhard
Versions Affected: prior to v1.2.0-r1112

Exploitation Mechanism

The vulnerability can be exploited remotely without the need for authentication. Attackers can leverage the flaw in authentication header handling to execute arbitrary code on the target system.

Mitigation and Prevention

Protecting systems from CVE-2020-17407 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply the vendor-supplied patch or update to version v1.2.0-r1112 or later to mitigate the vulnerability.
Monitor network traffic for any signs of exploitation attempts.

Long-Term Security Practices

Implement network segmentation to limit the impact of potential attacks.
Regularly update and patch all software and firmware to address security vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate weaknesses.
Educate users on safe computing practices and the importance of security awareness.
Consider implementing intrusion detection and prevention systems to enhance security posture.
Stay informed about emerging threats and security best practices.

Patching and Updates

Ensure timely application of security patches and updates provided by Microhard to address the vulnerability.