Beyond PS-LTE: Security Model Design Framework for PPDR Operational Environment

Table 5

Numbers and examples of security threats in each category.

Category	Label	Count	Threat example
UE	1.1	35	Device level information disclosure of type 1 UE; external data network connection of type 1 UE and the following threats
	1.2	7	Sending malicious attachments from type 2 to type 1 UE; other device connections to linked IP network through type 2 UE
	1.3	6	Network level information disclosure of type 1 UE and the following spoofing threats
eNodeB	2.1	11	External network connection of type 1 UE and the following information disclosure, denial of service, and elevation of privilege threats
EPC	3.1	15	Accessing the HSSA and the IP network by protocol not specified in standards; information disclosure of user plane data
IP network	4.1	7	VPN client identification spoofing; encrypted user plane data replay
	4.2	9	Denial of service and elevation of privilege of the services running on web server
Total number	90

All categories and labels are matched with those in Section 6.3. We leave out to list all threats due to the security policy.