Ground Control to Major Threat: Hacking the Space Link Extension Protocol
Analyzes security vulnerabilities in the Space Link Extension protocol used by NASA and ESA, demonstrating ground station traffic interception.
Summary
Targeting Space Ground Segment Infrastructure
While satellite security discussions frequently emphasize direct RF jamming, attacking terrestrial ground segment infrastructure is often far more accessible and potent for adversaries.
The Space Link Extension (SLE) Standard
The SLE protocol standardizes communication between space mission data centers and distributed tracking ground stations across major space agencies, including NASA and ESA.
Protocol Vulnerabilities and Hijacking Vectors
Architectural weaknesses in SLE implementations enable malicious actors to conduct denial-of-service (DoS) attacks, intercept unencrypted telemetry, and inject unauthorized spacecraft commands.
Protocol Level Mitigation Strategies
Hardening space communications requires integrating mandatory mutual authentication, cryptographic signing, and robust transport encryption into the core SLE protocol standard.
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