CVE-2021-40870 : What You Need to Know

Aviatrix Controller 6.x before 6.5-1804.1922 allows unauthenticated users to execute arbitrary code via directory traversal.

Understanding CVE-2021-40870

This CVE relates to a security issue found in Aviatrix Controller 6.x versions before 6.5-1804.1922.

What is CVE-2021-40870?

An unrestricted file upload vulnerability in Aviatrix Controller 6.x allows unauthenticated users to execute arbitrary code through directory traversal.

The Impact of CVE-2021-40870

The vulnerability enables attackers to upload malicious files, leading to potential code execution on the system by exploiting directory traversal.

Technical Details of CVE-2021-40870

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

An unrestricted file upload vulnerability in Aviatrix Controller 6.x before version 6.5-1804.1922 permits unauthenticated users to execute arbitrary code using directory traversal.

Affected Systems and Versions

Affected Versions: Aviatrix Controller 6.x before 6.5-1804.1922
Affected Component: Unrestricted file upload functionality

Exploitation Mechanism

The vulnerability occurs due to a lack of proper validation checks during file uploads, enabling attackers to exploit directory traversal techniques to execute arbitrary code.

Mitigation and Prevention

Suggestions for addressing and preventing the CVE-2021-40870 vulnerability.

Immediate Steps to Take

Update: Apply the latest security patches and updates from Aviatrix Controller to fix the vulnerability.
Restrict Access: Implement access controls to prevent unauthenticated users from uploading files.

Long-Term Security Practices

Regular Security Audits: Conduct frequent security audits to identify and remediate vulnerabilities.
User Training: Educate users on secure file upload practices to prevent malicious file uploads.

Patching and Updates

Regularly monitor and apply security updates and patches released by Aviatrix to ensure system security.