CVE-2023-24515 : What You Need to Know

This CVE record pertains to a Server-Side Request Forgery (SSRF) vulnerability in the API checker of Pandora FMS, affecting version v767 and prior versions on all platforms.

Understanding CVE-2023-24515

This section delves into the details of the CVE-2023-24515 vulnerability.

What is CVE-2023-24515?

The vulnerability involves an SSRF issue in the API checker of Pandora FMS. Essentially, the application fails to validate the URL scheme used when retrieving API URLs. Instead of strictly validating the http/https schemes, the application permits other schemes like 'file,' which could enable a malicious user to retrieve internal file content.

The Impact of CVE-2023-24515

The vulnerability poses a moderate risk, with a base score of 5.2, falling under the medium severity category in terms of impact. Exploitation of this SSRF flaw could lead to high confidentiality impact and low integrity impact, requiring high privileges from the attacker and user interaction for successful exploitation.

Technical Details of CVE-2023-24515

In this section, we will explore the technical aspects of CVE-2023-24515.

Vulnerability Description

The SSRF vulnerability allows an attacker to manipulate the URL scheme to access internal file content, bypassing the application's intended security controls.

Affected Systems and Versions

Pandora FMS version v767 and earlier versions are affected by this vulnerability on all platforms.

Exploitation Mechanism

The SSRF vulnerability can be exploited by an attacker by manipulating the URL scheme parameter to retrieve sensitive internal file content.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-24515, certain steps can be taken to enhance the security posture of the affected systems.

Immediate Steps to Take

Apply the patch provided by the vendor, updating the Pandora FMS software to version v769 or later.
Monitor network traffic and look for any suspicious activities that could indicate exploitation attempts.

Long-Term Security Practices

Regularly update and patch software to ensure vulnerabilities are addressed promptly.
Implement strict input validation mechanisms to prevent SSRF attacks.
Conduct regular security audits and assessments to identify and remediate potential vulnerabilities.

Patching and Updates

The vulnerability has been addressed in the v769 release of Pandora FMS. It is advised to promptly update the software to this version or the latest available version to mitigate the risk of exploitation.