Shared Resource Leakage

Techniques Addressed by Countermeasure

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ID		Name	Description
IA-0005		Rendezvous & Proximity Operations	Threat actors may perform a space rendezvous which is a set of orbital maneuvers during which a spacecraft arrives at the same orbit and approach to a very close distance (e.g. within visual contact or close proximity) to a target SV.
	.02	Docked Vehicle / OSAM	Threat actors may leverage docking vehicles to laterally move into a target SV. If information is known on docking plans, a threat actor may target vehicles on the ground or in space to deploy malware to laterally move or execute malware on the target SV via the docking interface.
	.03	Proximity Grappling	Threat actors may posses the capability to grapple target SVs once it has established the appropriate space rendezvous. If from a proximity / rendezvous perspective a threat actor has the ability to connect via docking interface or expose testing (i.e., JTAG port) once it has grappled the target SV, they could perform various attacks depending on the access enabled via the physical connection.
IA-0006		Compromise Hosted Payload	Threat actors may compromise the target SV hosted payload to initially access and/or persist within the system. Hosted payloads can usually be accessed from the ground via a specific command set. The command pathways can leverage the same ground infrastructure or some host payloads have their own ground infrastructure which can provide an access vector as well. Threat actors may be able to leverage the ability to command hosted payloads to upload files or modify memory addresses in order to compromise the system. Depending on the implementation, hosted payloads may provide some sort of lateral movement potential.
EX-0009		Exploit Code Flaws	Threats actors may identify and exploit flaws or weaknesses within the software running on-board the target SV. These attacks may be extremely targeted and tailored to specific coding errors introduced as a result of poor coding practices or they may target known issues in the commercial software components.
	.02	Operating System	Threat actors may exploit flaws in the operating system code, which controls the storage, memory management, provides resources to the FSW, and controls the bus.
LM-0001		Hosted Payload	Threat actors may use the hosted payload within the victim SV in order to gain access to other subsystems. The hosted payload often has a need to gather and send data to the internal subsystems, depending on its purpose. Threat actors may be able to take advantage of this communication in order to laterally move to the other subsystems and have commands be processed.
LM-0002		Exploit Lack of Bus Segregation	Threat actors may exploit victim SVs on-board flat architecture for lateral movement purposes. Depending on implementation decisions, SVs can have a completely flat architecture where remote terminals, sub-systems, payloads, etc. can all communicate on the same main bus without any segmentation, authentication, etc. Threat actors can leverage this poor design to send specially crafted data from one compromised devices or sub-system to laterally move to another area of the SV.
LM-0004		Visiting Vehicle Interface(s)	Threat actors may move to other SVs through visiting vehicle interfaces. When a vehicle docks with a SV, many programs are automatically triggered in order to ensure docking mechanisms are locked. This entails several data points and commands being sent to and from the SV and the visiting vehicle. If a threat actor were to compromise a visiting vehicle, they could target these specific programs in order to send malicious commands to the victim SV once docked.

Space Threats Addressed by Countermeasure

ID	Description