Trustworthiness Attribute ServiceAuthenticity

URI: ServiceAuthenticity

Description: The service accessed by a client is not an imposter.

This attribute is undermined by the misbehaviour ServiceImpersonation

Represents a trust relationship between a Client and a Service. Exists where the two exchange authorization tokens but not necessarily other credentials.

CC.AuC.CACSSaS.3.2

Spoofed authorization service Service allows impersonation of Client to Process: if service Process redirects clients to service Service for authentication, and sends the client credentials to Service for validation, then if an attacker can impersonate Service to Process can falsely validate fake client credentials. Note that this does not necessarily mean they can access Process as Client, only that the client credentials are compromised. The fake token also does not give the attacker rights to other services used by Process.

CC.AuC.CACSScS.3.2

Possible access to Process as client Client by interception of credentials by a service imposter: if service Process redirects clients to service Service for authentication, an attacker able to impersonate service Service to Client. Since the attacker would then have access to credentials (even if limited to a single use), they can impersonate Client to Process. Note that this does not necessarily mean they can access service Process, only that the client credentials are compromised.

CC.AuC.CCC-nS.3.2

Password from client Client captured by imposter of service Service: if an attacker can successfully spoof service Service to client Client, they can capture the password (or other reusable secret) used by Client to access the real service, allowing them to also impersonate the client.

DF.Auth.AC-iDF-VSC.3.2

Imposter posing as Service injects false content into the flow of data Data from FlowsFrom to FlowsTo between Service and Client: if an attacker can impersonate service Service, they can inject false data in messages to Client.

DF.C.AC-iDF-VCS.3.2

Imposter posing as service Service intercepts flow of Data from FlowsFrom and FlowsTo sent by Client: if an attacker can impersonate service Service, they can intercept content in the flow of data Data between FlowsFrom and FlowsTo via the service and its client Client.

I.Auth.HVSICSG.3

Spoofing virtual network LogicalSubnet to supplicant Host: at attacker who is able to impersonate the service Service mediating access to LogicalSubnet can induce a supplicant device Host to connect to the wrong virtual subnet.