CVE-2021-42775 : What You Need to Know

Broadcom Emulex HBA Manager/One Command Manager versions before 11.4.425.0 and 12.8.542.31 have a vulnerability in the remote firmware download feature, allowing an unauthenticated user to place or replace arbitrary files on the remote host.

Understanding CVE-2021-42775

This CVE describes a security vulnerability in Broadcom Emulex HBA Manager/One Command Manager related to remote firmware download.

What is CVE-2021-42775?

The vulnerability allows unauthorized users to manipulate files on the remote host if the software is not in Strictly Local Management mode and is operating in non-secure mode without authentication.

The Impact of CVE-2021-42775

Unauthorized users can place or replace arbitrary files on the remote host.

Technical Details of CVE-2021-42775

This section provides specific technical details regarding the vulnerability.

Vulnerability Description

The vulnerability exists in the remote firmware download feature of Broadcom Emulex HBA Manager/One Command Manager versions before 11.4.425.0 and 12.8.542.31.

Affected Systems and Versions

Versions before 11.4.425.0 and 12.8.542.31 of Broadcom Emulex HBA Manager/One Command Manager

Exploitation Mechanism

When not installed in Strictly Local Management mode and in non-secure mode without authentication

Mitigation and Prevention

It is crucial to understand how to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Ensure the software is in Strictly Local Management mode
Apply the necessary security configurations recommended by the vendor

Long-Term Security Practices

Regularly update to the latest patched versions of the software
Implement proper authentication mechanisms and secure configurations

Patching and Updates

Update to version 11.4.425.0 or 12.8.542.31 to mitigate the vulnerability