CVE-2020-12251 Explained : Impact and Mitigation

An issue was discovered in Gigamon GigaVUE 5.5.01.11 that allows an authenticated user to achieve directory traversal via the upload functionality.

Understanding CVE-2020-12251

This CVE involves a vulnerability in Gigamon GigaVUE 5.5.01.11 that enables a specific manipulation by authenticated users.

What is CVE-2020-12251?

The issue in Gigamon GigaVUE 5.5.01.11 permits an authenticated user to modify the filename value during the upload process, potentially leading to directory traversal.

The Impact of CVE-2020-12251

The vulnerability allows an attacker to change the filename value and execute directory traversal, potentially obtaining a complete directory listing of the affected machine.

Technical Details of CVE-2020-12251

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The upload functionality in Gigamon GigaVUE 5.5.01.11 can be exploited by authenticated users to manipulate the filename value, enabling directory traversal via a ../ sequence.

Affected Systems and Versions

Product: Gigamon GigaVUE 5.5.01.11
Vendor: Gigamon
Versions: All versions are affected

Exploitation Mechanism

The vulnerability is exploited by changing the filename value during the upload process, allowing the attacker to traverse directories and potentially access sensitive information.

Mitigation and Prevention

Protecting systems from CVE-2020-12251 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable or restrict access to the upload functionality in Gigamon GigaVUE 5.5.01.11
Implement strict input validation to prevent directory traversal attacks

Long-Term Security Practices

Regularly update and patch the affected system
Conduct security training for users to recognize and report suspicious activities

Patching and Updates

Apply patches or updates provided by Gigamon to address the vulnerability