CVE-2023-33411 Explained : Impact and Mitigation

A web server in the Intelligent Platform Management Interface (IPMI) baseboard management controller (BMC) implementation on Supermicro X11 and M11 based devices allows remote unauthenticated users to perform directory traversal, potentially disclosing sensitive information.

Understanding CVE-2023-33411

This CVE involves a vulnerability in the web server of the Intelligent Platform Management Interface (IPMI) BMC implementation on certain Supermicro devices.

What is CVE-2023-33411?

CVE-2023-33411 refers to a security flaw that enables remote unauthenticated users to exploit a directory traversal vulnerability on Supermicro X11 and M11 based devices with firmware versions up to 3.17.02.

The Impact of CVE-2023-33411

The vulnerability could lead to unauthorized users accessing sensitive information on affected devices without authentication, potentially compromising the security and confidentiality of data stored on the systems.

Technical Details of CVE-2023-33411

This section provides detailed technical insights into the CVE.

Vulnerability Description

The vulnerability in the web server of the IPMI BMC implementation allows remote unauthenticated users to traverse directories, which may result in the exposure of critical information stored on the devices.

Affected Systems and Versions

Supermicro X11 and M11 based devices with firmware versions up to 3.17.02 are affected by this vulnerability.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by sending crafted requests to the affected web server, enabling them to navigate directories and access sensitive data without proper authentication.

Mitigation and Prevention

Preventive measures to secure systems against CVE-2023-33411.

Immediate Steps to Take

Disable remote access to the BMC web server if not essential.
Implement network segmentation to restrict access to affected devices.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update firmware to the latest versions provided by Supermicro.
Conduct security assessments and penetration testing to identify and mitigate vulnerabilities.

Patching and Updates

Check the Supermicro website for the latest firmware updates and security advisories to patch the vulnerability and enhance the overall security posture of the BMC implementation.