CVE-2020-10283: dronecode micro_air_vehicle_link

Vulnerability summary

CVE-2020-10283 is a critical (CVSS 9.8) vulnerability in dronecode micro_air_vehicle_link. EPSS estimates a 1.47% chance of exploitation in the next 30 days, higher than 73.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 20-08-2020
   PublishedVulnerability first disclosed.
2. 16-09-2024
   Last modifiedVulnerability information updated.

Description

The Micro Air Vehicle Link (MAVLink) protocol presents authentication mechanisms on its version 2.0 however according to its documentation, in order to maintain backwards compatibility, GCS and autopilot negotiate the version via the AUTOPILOT_VERSION message. Since this negotiation depends on the answer, an attacker may craft packages in a way that hints the autopilot to adopt version 1.0 of MAVLink for the communication. Given the lack of authentication capabilities in such version of MAVLink (refer to CVE-2020-10282), attackers may use this method to bypass authentication capabilities and interact with the autopilot directly.

• CWE-288Authentication Bypass Using an Alternate Path or ChannelThe product requires authentication, but the product has an alternate path or channel that does not require authentication.