CVE-2023-27253 : Security Advisory and Response

This CVE record pertains to a command injection vulnerability identified in the function restore_rrddata() of Netgate pfSense v2.7.0. The vulnerability allows authenticated attackers to execute arbitrary commands by manipulating the contents of an XML file supplied to the component config.xml.

Understanding CVE-2023-27253

This section will provide insight into the nature of CVE-2023-27253 and its impact, along with technical details, affected systems, and mitigation strategies.

What is CVE-2023-27253?

CVE-2023-27253 is a command injection vulnerability in Netgate pfSense v2.7.0 that enables authenticated attackers to execute arbitrary commands through the manipulation of an XML file provided to the function restore_rrddata().

The Impact of CVE-2023-27253

The impact of this vulnerability is significant as it allows attackers with valid credentials to bypass security measures and execute malicious commands, potentially leading to unauthorized access, data theft, or system compromise.

Technical Details of CVE-2023-27253

Delve deeper into the technical aspects of CVE-2023-27253 to understand its vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability resides in the restore_rrddata() function of Netgate pfSense v2.7.0, enabling attackers to inject and execute arbitrary commands by manipulating the contents of an XML file provided to the component's config.xml.

Affected Systems and Versions

At present, the affected vendor, product, and versions related to this CVE are classified as "n/a," indicating that the vulnerability impacts Netgate pfSense v2.7.0.

Exploitation Mechanism

The exploitation of CVE-2023-27253 involves authenticated attackers leveraging the vulnerability in the restore_rrddata() function to insert and execute unauthorized commands via the manipulation of supplied XML file contents.

Mitigation and Prevention

Discover essential steps to mitigate the risks associated with CVE-2023-27253, including immediate actions to take, long-term security practices, and the significance of patching and updates.

Immediate Steps to Take

In response to CVE-2023-27253, organizations should promptly apply relevant security patches and configurations, restrict access to vulnerable components, and monitor for any suspicious activities within Netgate pfSense v2.7.0 environments.

Long-Term Security Practices

Implementing robust access controls, conducting regular security assessments, staying informed about security advisories, and fostering a security-conscious culture are integral to maintaining long-term resilience against potential vulnerabilities like CVE-2023-27253.

Patching and Updates

Regularly updating Netgate pfSense installations with the latest patches and security fixes provided by the vendor is crucial in addressing known vulnerabilities and enhancing the overall security posture of the network infrastructure.