CVE-2023-43121 Explained : Impact and Mitigation

A Directory Traversal vulnerability in the Chalet application within Extreme Networks Switch Engine (EXOS) has been discovered, allowing attackers to read arbitrary files.

Understanding CVE-2023-43121

This CVE identifies a Directory Traversal vulnerability present in Extreme Networks Switch Engine (EXOS) versions prior to 32.5.1.5, 22.7, and 31.7.2, which could be exploited by malicious actors to access unauthorized files.

What is CVE-2023-43121?

The CVE-2023-43121 pertains to a security flaw in the Chalet application of Extreme Networks Switch Engine (EXOS) that enables unauthorized access to arbitrary files through a Directory Traversal attack.

The Impact of CVE-2023-43121

If exploited, this vulnerability allows threat actors to retrieve sensitive information from affected systems, potentially leading to unauthorized disclosure of data and undermining system confidentiality.

Technical Details of CVE-2023-43121

This section provides an overview of the vulnerability, the systems affected, and the mechanism through which the exploit occurs.

Vulnerability Description

The vulnerability in the Chalet application of Extreme Networks Switch Engine (EXOS) permits attackers to traverse directories and read files beyond the intended access level, compromising system security.

Affected Systems and Versions

Extreme Networks Switch Engine (EXOS) versions prior to 32.5.1.5, 22.7, and 31.7.2 are susceptible to this vulnerability, exposing organizations using these versions to potential data breaches.

Exploitation Mechanism

Attackers leverage the Directory Traversal flaw in the Chalet application to navigate file directories and extract confidential information from compromised systems.

Mitigation and Prevention

To safeguard systems against CVE-2023-43121, immediate actions and long-term security measures need to be implemented.

Immediate Steps to Take

Update Extreme Networks Switch Engine (EXOS) to version 32.5.1.5, 22.7, or 31.7.2, where the vulnerability is patched.

Long-Term Security Practices

Implement access controls and regular security audits to prevent unauthorized access to critical files.
Educate staff on best practices for identifying and mitigating Directory Traversal vulnerabilities.

Patching and Updates

Regularly monitor for security updates from Extreme Networks and promptly apply patches to address known vulnerabilities.