CVE-2023-48123 : Security Advisory and Response

An issue in Netgate pfSense Plus v.23.05.1 and before and pfSense CE v.2.7.0 allows a remote attacker to execute arbitrary code via a crafted request to the packet_capture.php file.

Understanding CVE-2023-48123

This CVE identifies a security issue in Netgate pfSense Plus and pfSense CE that could be exploited by a remote attacker to run arbitrary code.

What is CVE-2023-48123?

CVE-2023-48123 highlights a vulnerability in Netgate pfSense Plus v.23.05.1 and earlier, as well as pfSense CE v.2.7.0, which could permit a remote attacker to execute malicious code.

The Impact of CVE-2023-48123

The impact of this CVE is significant as it can lead to unauthorized code execution on affected systems, potentially allowing attackers to take control of the system or access sensitive data.

Technical Details of CVE-2023-48123

This section provides a deeper dive into the technical aspects of the CVE.

Vulnerability Description

The vulnerability in Netgate pfSense Plus and pfSense CE arises from insufficient input validation in the packet_capture.php file, enabling attackers to inject and execute arbitrary code.

Affected Systems and Versions

Netgate pfSense Plus v.23.05.1 and earlier, along with pfSense CE v.2.7.0, are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a specially crafted request to the packet_capture.php file, tricking the system into executing the malicious code.

Mitigation and Prevention

To address CVE-2023-48123 and enhance system security, certain mitigation and prevention measures can be implemented.

Immediate Steps to Take

Users should update their Netgate pfSense Plus and pfSense CE installations to the latest versions that contain patches addressing this vulnerability. Additionally, network segmentation and access controls can help limit the impact of potential attacks.

Long-Term Security Practices

Regular security assessments, application of security best practices, and employee training on identifying and responding to phishing attacks can enhance overall security posture.

Patching and Updates

Regularly monitoring for patches and updates from Netgate for pfSense products, and promptly applying them to the systems can help mitigate the risk of exploitation.