COMPONENT

TTC / uplink

PaperForthcoming. Table 3 and the detection priorities.

Commands reach the satellite through this interface. A bad command can change what the satellite does.

High in the table: Spoofing, Replay, Tampering, Denial of service / jamming, Firmware compromise.

Lightweight onboard checks of command origin, sequence, timing, and abnormal command activity.

MalwareMedium
No observable given for this pair.
SpoofingHigh
Unexpected source, signal inconsistency, or a timing or position anomaly.
ReplayHigh
Repeated message, abnormal sequence, or a timing inconsistency.
TamperingHigh
No observable given for this pair.
Denial of service / jammingHigh
Signal degradation, traffic overload, packet loss, or a drop in availability.
Firmware compromiseHigh
No observable given for this pair.
Supply-chain attackMedium
No observable given for this pair.
Insider threatMedium
No observable given for this pair.