CVE-2023-4335 : What You Need to Know

Broadcom RAID Controller Web server (nginx) is serving private server-side files without any authentication on Linux.

Understanding CVE-2023-4335

This CVE identifier pertains to a vulnerability in the Broadcom RAID Controller Web server (nginx) that allows the serving of private server-side files without any authentication on Linux systems.

What is CVE-2023-4335?

CVE-2023-4335 highlights a security flaw in the Broadcom RAID Controller Web server (nginx) where private server-side files can be accessed without requiring any authentication, potentially leading to unauthorized access to sensitive information.

The Impact of CVE-2023-4335

The impact of CVE-2023-4335 could result in unauthorized access to confidential data stored on the affected system, posing a significant risk to data security and privacy.

Technical Details of CVE-2023-4335

This section delves into the specific technical aspects of the CVE-2023-4335 vulnerability.

Vulnerability Description

The vulnerability allows attackers to access private server-side files on Linux systems served by the Broadcom RAID Controller Web server (nginx) without the need for authentication, opening up avenues for unauthorized data retrieval.

Affected Systems and Versions

Affected Product: LSI Storage Authority (LSA)
Vendor: Broadcom
Vulnerable Versions: Less than 7.017.011.000

Exploitation Mechanism

Exploiting CVE-2023-4335 involves leveraging the lack of authentication controls in the Broadcom RAID Controller Web server (nginx) to gain unauthorized access to private server-side files.

Mitigation and Prevention

To address the CVE-2023-4335 vulnerability, it is crucial to implement effective mitigation strategies and preventive measures.

Immediate Steps to Take

Organizations should promptly update the Broadcom RAID Controller to version 7.017.011.000 or later to mitigate the vulnerability.
Limit access to sensitive server-side files and enforce strict authentication mechanisms.

Long-Term Security Practices

Regularly monitor and audit server access logs to detect any unauthorized access attempts.
Conduct thorough security assessments and penetration testing to identify and address any underlying vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by Broadcom for the RAID Controller Web server.
Establish a robust patch management process to ensure timely application of security fixes to mitigate known vulnerabilities.