CVE-2020-10283 : Security Advisory and Response

CVE-2020-10283, also known as RVD#3317, involves a vulnerability in the MAVLink protocol version 2.0 that allows attackers to bypass authentication mechanisms. This CVE was published on August 20, 2020.

Understanding CVE-2020-10283

This CVE highlights a security issue in the MAVLink protocol version 2.0 that can be exploited by attackers to circumvent authentication mechanisms, potentially leading to unauthorized access to autopilot systems.

What is CVE-2020-10283?

The vulnerability in MAVLink version 2.0 enables attackers to manipulate communication between Ground Control Stations (GCS) and autopilots, tricking the autopilot into using the less secure version 1.0 of MAVLink, which lacks proper authentication capabilities.

The Impact of CVE-2020-10283

The impact of this vulnerability is rated as high, with a CVSS base score of 8.1. The attack complexity is high, and it can result in a significant impact on confidentiality and availability.

Technical Details of CVE-2020-10283

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability arises from the negotiation process between GCS and autopilot, allowing attackers to influence the autopilot to use the less secure MAVLink version 1.0, bypassing authentication mechanisms.

Affected Systems and Versions

Product: MAVLink
Vendor: PX4
Version: 2.0

Exploitation Mechanism

Attackers can craft packages to manipulate the autopilot into adopting the vulnerable MAVLink version 1.0, exploiting the lack of authentication capabilities to interact with the autopilot directly.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.

Immediate Steps to Take

Update MAVLink to the latest secure version to mitigate the risk of exploitation.
Implement network segmentation to restrict unauthorized access to autopilot systems.

Long-Term Security Practices

Regularly monitor and audit network traffic for any suspicious activities.
Educate users on secure communication practices and the importance of updating software.

Patching and Updates

Stay informed about security updates and patches released by MAVLink and PX4 to address this vulnerability.