Comprehensive Authentication and Authorization Function

Credentialed evasion is the detection-side face of the same problem: activity that authenticates correctly and is therefore not anomalous. The practice governs it without interdicting it.

A replayed message carries genuine authentication, so an authentication requirement stated without freshness does not stop it. The practice governs the surface the replay traverses; anti-replay counters or authenticated encryption are what interdict.

Command-packet replay has the same relationship to the practice as its parent: authentic material, replayed, which authentication alone does not distinguish.

The technique attacks the authentication mechanism itself, by patching flight binaries, hooking command handlers, or changing key identifiers. A requirement that authentication be comprehensive raises the bar the adversary must subvert but does not prevent its subversion; software integrity, not this practice, is what interdicts.

The technique exists because backup and contingency paths are configured, monitored, or authenticated differently from the primary. A requirement that covers the mission system rather than the primary path closes that gap by construction.

The backup ground segment is inside the mission system the practice scopes, so holding it to the same authentication and authorization removes the differential the technique depends on.

The backup receive path is the space-segment half of the same gap: commands arriving on a cross-strapped or alternate front end must meet the same authentication bar as the primary.

Malicious commanding through a valid ground station passes authentication by definition, since the origin is legitimate. The practice's authorization half still governs, by bounding what that operator or service is permitted to command, but it does not interdict the technique's vector.

A rogue ground station succeeds only where the vehicle accepts commands from an unauthenticated origin. The practice requires that only authenticated and authorized personnel, devices, and software access the mission system, which interdicts the technique's defining vector and its whole scope.

A rogue spacecraft presenting itself as a legitimate peer is the device case of the same requirement. Moderate because proximity and crosslink trust relationships may be established by mission design rather than by an authentication exchange the practice can govern.

Traversal on legitimate credentials crosses boundaries that trust rather than verify. The practice's authorization requirement is the governing one; authentication is already satisfied by the reused credential.

Credentialed persistence uses valid credentials, so it satisfies authentication and is met instead by the authorization half of the practice and by credential lifecycle management the practice implies rather than states.