CVE-2023-3769 : Exploit Details and Defense Strategies

This CVE record pertains to a vulnerability identified in Ingeteam's INGEPAC FC5066 product, discovered by Aarón Flecha Menéndez and Gabriel Vía Echezarreta, and assigned by INCIBE. The vulnerability involves incorrect data input validation, potentially allowing an attacker to trigger a denial of service (DoS) condition through the MMS protocol, leading to a complete system reboot of the affected device.

Understanding CVE-2023-3769

This section delves into the specifics of CVE-2023-3769, outlining the impact, technical details, and mitigation strategies associated with the vulnerability.

What is CVE-2023-3769?

The CVE-2023-3769 vulnerability is categorized as an incorrect data input validation issue in the Ingeteam INGEPAC FC5066 product. This flaw could be exploited by an attacker with network access to initiate a DoS attack through the MMS protocol, resulting in a system reboot.

The Impact of CVE-2023-3769

The impact of CVE-2023-3769 is rated as high, with a CVSS v3.1 base score of 8.6. The vulnerability could lead to a complete system reboot of the device and its services, potentially disrupting operations and causing downtime.

Technical Details of CVE-2023-3769

This section provides an overview of the vulnerability, including affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability stems from incorrect data input validation in the Ingeteam INGEPAC FC5066 product, enabling an attacker to conduct fuzzing techniques via specially crafted packets over the MMS protocol, resulting in a DoS condition and system reboot.

Affected Systems and Versions

The vulnerability affects version 9.0.22.6+6.1.1.22+5.3.1.1 of the INGEPAC FC5066 product by Ingeteam.

Exploitation Mechanism

By leveraging the incorrect data input validation flaw, an attacker can craft malicious packets to trigger a DoS condition via the MMS protocol, leading to a complete system reboot.

Mitigation and Prevention

In response to CVE-2023-3769, it is crucial for users to implement immediate steps for mitigation and adopt long-term security practices to safeguard against similar vulnerabilities in the future.

Immediate Steps to Take

Users of the affected product should apply the recommended solution provided by the vendor, which involves updating to version 9.8.30.0 or later to mitigate the vulnerability.

Long-Term Security Practices

To enhance overall security posture, organizations should prioritize regular security assessments, maintain up-to-date software versions, and implement network segmentation to minimize attack surface.

Patching and Updates

Staying informed about security advisories and promptly applying patches released by vendors is essential to address vulnerabilities such as CVE-2023-3769 and fortify the resilience of IT infrastructure.