The vulnerability, identified as CVE-2022-28170, affects Brocade Fabric OS Web Application services. This vulnerability has been found in versions of the software before Brocade Fabric v9.1., v9..1e, v8.2.3c, and v7.4.2j. The issue allows server and user passwords to be stored in debug statements that can be exploited by a local user with access to the debug files.

This blog post discusses the details of the vulnerability, including the affected code snippets, original references, and the potential exploit information. It aims to inform the readers about the severity of this issue and provide guidance on preventing or mitigating its impact.

Code Snippet

The problem seems to have been introduced in the web application services in the affected versions of Brocade Fabric OS. The code snippet below demonstrates a simplified example of a debug statement that could potentially expose sensitive information.

def authenticate_user(username, password):
    # Authenticate user using the provided username and password
    # Debug statement that logs the sensitive information
    print("[DEBUG] Username: {}, Password: {}".format(username, password))

    # Actual authentication process
    # ...

if __name__ == "__main__":
    # Prompt user for username and password
    username = input("Username: ")
    password = input("Password: ")
    # Call the authenticate_user function
    authenticate_user(username, password)

In this example, the authenticate_user function logs the username and password in clear text as part of its debug statements. A local user with access to the system could potentially look through the generated debug logs and extract this sensitive information.

- NVD - CVE-2022-28170:
- CVE Details:

Exploit Details

While the exploit requires the attacker to have local access to the system, it is essential to understand the potential impact if an attacker were to successfully exploit the vulnerability:

1. Unauthorized access to sensitive information: Exposed passwords of servers and users can be used to gain unauthorized access to the systems and resources, leading to potential data breaches or unauthorized actions.

2. Privilege escalation: An attacker can also use the compromised credentials to escalate their privileges within the network, leading to even more damaging consequences.

To mitigate the impact of this vulnerability, it is crucial to follow best practices, including

1. Updating to the latest version: Users running the affected versions of Brocade Fabric OS should upgrade to the latest version (v9.1. or newer).

2. Limiting access to debug files: Restrict access to the debug files generated by the web application services to a limited set of users who have administrative or maintenance rights.

3. Regularly auditing logs and debug files: Regularly review logs and debug files to ensure that no sensitive information is stored in them. This includes periodically checking for any unauthorized access or tampering with the files.

4. Disabling debugging in production: Debugging options should be disabled in a production environment to prevent the exposure of sensitive information.


The CVE-2022-28170 vulnerability in Brocade Fabric OS Web Application services exposes server and user passwords in debug statements, allowing a local user to extract sensitive information. By following the suggested best practices, users can protect their systems and data from potential exploits. Additionally, always stay up-to-date with the latest patches and software updates to minimize the risk of exposure to new vulnerabilities.


Published on: 10/25/2022 21:15:00 UTC
Last modified on: 03/02/2023 16:06:00 UTC