CVE-2023-24471 Explained : Impact and Mitigation

This CVE-2023-24471 was published on August 9, 2023, by Nozomi. It involves an access control vulnerability in Guardian and CMC products before version 22.6.2. The issue allows authenticated users with reduced visibility to access unauthorized information through the debug functionality.

Understanding CVE-2023-24471

This CVE highlights an information disclosure vulnerability that can be exploited by authenticated users to access restricted data through the debug functionality in Guardian/CMC products.

What is CVE-2023-24471?

The CVE-2023-24471 vulnerability involves the lack of enforcement of restrictions on actual assertions in the debug functionality, leading to unauthorized access to data not typically accessible in Query and Assertions functions.

The Impact of CVE-2023-24471

The impact of this vulnerability is categorized as "Privilege Abuse" (CAPEC-122), with a CVSSv3.1 base score of 6.5 (Medium severity). It poses a high risk to confidentiality as authenticated users with reduced visibility can exploit the flaw to obtain sensitive information.

Technical Details of CVE-2023-24471

This section delves into the specifics of the vulnerability, affected systems, and how the exploit can be carried out.

Vulnerability Description

The vulnerability arises from the lack of enforcement of restrictions on actual assertions in the debug functionality, allowing authenticated users with reduced visibility to access unauthorized information.

Affected Systems and Versions

The affected products include Guardian and CMC versions earlier than 22.6.2.

Exploitation Mechanism

An authenticated user with reduced visibility can leverage the debug functionality to obtain unauthorized data that is typically inaccessible through the Query and Assertions functions.

Mitigation and Prevention

To address CVE-2023-24471, immediate steps should be taken to mitigate the risk and prevent potential exploitation.

Immediate Steps to Take

One immediate step is to upgrade to version 22.6.2 or later of the Guardian and CMC products to eliminate the vulnerability.

Long-Term Security Practices

Implementing internal firewall features to restrict access to the web management interface can enhance security posture and prevent unauthorized access to sensitive information.

Patching and Updates

Regularly applying patches and updates provided by Nozomi Networks is essential to address security vulnerabilities and enhance the resilience of the Guardian and CMC products against potential exploits.