Traffic Alert and Collision Avoidance System (TCAS) II has an External Control of System or Configuration Setting vulnerability

7.1 CVSS

Vulnerability Description

For TCAS II systems using transponders compliant with MOPS earlier than RTCA DO-181F, an attacker can impersonate a ground station and issue a Comm-A Identity Request. This action can set the Sensitivity Level Control (SLC) to the lowest setting and disable the Resolution Advisory (RA), leading to a denial-of-service condition.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Giacomo Longo and Enrico Russo of Genova University reported these vulnerabilities to CISA. Martin Strohmeier and Vincent Lenders of armasuisse reported these vulnerabilities to CISA. Alessio Merlo of Centre for High Defense Studies reported these vulnerabilities to CISA.