Misbehaviour LossOfAccessibility

URI: LossOfAccessibility

Package: ProcessComms

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Description: Referring to a client-service relationship, representing inability of the client to authenticate with the service.

AuthChannel

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

LossOfAccessibility
CC.AX.CACSSaS.0

Client Client unable to access service Process because Process cannot access authorization service Service: the service Process requires that clients authenticate with a separate service Service, but Process cannot access Service to exchange the client token issued by Service for an access token granting rights at Process.
LossOfAccessibility
CC.AX.CACSScS.0

Client Client unable to authenticate with Service to access service Process: the service Process requires that clients authenticate with a separate service Service, which is inaccessible to client Client.
LossOfAccessibility
CC.AX.CCCmSCS.0

Communication failure between Client and Service: if there are no available network paths between client Client and service Service, Client will be unable to connect to Service.
LossOfAccessibility
CC.AX.CCC-nmCCS.6.1.5

Client Client unable to authenticate via a trusted key pair with Service: the service Service requires that client connections are authenticated using an asymmetric cryptographic challenge against an X509 (or otherwise trusted) key pair, but here access is via a reverse proxy so there is no direct TLS connection.
LossOfAccessibility
CC.AX.CCC-nmSCS.6.1.5

Client Client unable to authenticate via a trusted key pair with Service: the service Service requires that client connections are authenticated using an asymmetric cryptographic challenge against an X509 (or otherwise trusted) key pair, but this is not enabled at Client.
LossOfAccessibility
CC.AX.CCC-nS.6.1.1

Client Client unable to authenticate via password with Service: the service Service requires that clients authenticate using a password, but this is not available to client Client.
LossOfAccessibility
CC.AX.CCC-nS.6.1.3

Client Client unable to use 2-factor authentication to access service Service: if service Service requires clients to authenticate using a second factor (e.g. a one time key or out of band key exchange), but this is not available to Client then access will be impossible.
LossOfAccessibility
CC.AX.CCCS.1.3

Compromised service Service prevents access by Client: if service Service is compromised then the attacker can prevent Client from authenticating with the service.
LossOfAccessibility
CC.AX.CCCS.6.1

Disabled access by client Client to Service: access by client Client to service Service has been disabled to prevent communication threats. However, this also causes a loss of accessibility of the service from that client.
LossOfAccessibility
CC.AX.CCCS.6.2

Disabling access by impersonated client Client to Service affects availability: access by client Client to service Service may be disabled to prevent access by an impersonated client, but this affects the availability of client-service connections.
LossOfAccessibility
CC.AX.CCCS.6.3

Disabling access by untrustworthy client Client to Service affects availability: access by client Client to service Service may be disabled to prevent access by a malicious or compromised client, but this affects the availability of client-service connections.
LossOfAccessibility
CC.AX.CCCvCCS.0

Access by Client to Service blocked between ProxyClient and Proxy: if Client is accessing Service via a proxy, then a comms failure to or from the proxy also causes an end-to-end comms failure between Client and Service.
LossOfAccessibility
CC.AX.CCDFSFS.6.4

Disabling excessive access by client Client to Service affects availability: access by client Client to service Service may be disabled to prevent excessive amounts of data being requested from the service, but this affects the availability of client-service connections.
LossOfAccessibility
CC.AX.CCDFSTS.6.4

Disabling excessive access by client Client to Service affects availability: access by client Client to service Service may be disabled to prevent excessive amounts of data being sent to the service, but this affects the availability of client-service connections.
LossOfAccessibility
CC.AX.HuCCC-nS.6.1.2

User Human of client Client forgot the password to authenticate with Service: the service Service requires that clients authenticate using a strong password, but the user Human cannot remember the password.
LossOfAccessibility
CC.AX.HuCCC-nS.6.1.7

Continuous authN false negative at Client prevents access to Service: the service Service requires that clients use continuous authentication to verify the identity of the user Human, and this is in place but produces a false negative result.

LossOfAccessibility
CC.AX.CACSSaS.0

Client Client unable to access service Process because Process cannot access authorization service Service: the service Process requires that clients authenticate with a separate service Service, but Process cannot access Service to exchange the client token issued by Service for an access token granting rights at Process.
LossOfAccessibility
CC.AX.CACSScS.0

Client Client unable to authenticate with Service to access service Process: the service Process requires that clients authenticate with a separate service Service, which is inaccessible to client Client.
LossOfAccessibility
CC.AX.CCCvCCS.0

Access by Client to Service blocked between ProxyClient and Proxy: if Client is accessing Service via a proxy, then a comms failure to or from the proxy also causes an end-to-end comms failure between Client and Service.
LossOfAccessibility
DF.A.CC-iDFCS.0

Flow of data Data from FlowsFrom to FlowsTo interrupted because Client cannot access Service: if client Client cannot access service Service, the end to end flow of data Data from FlowsFrom to FlowsTo that uses this client-service connection will be interrupted.
LossOfAccessibility
DF.A.CC-iDFSC.0

Flow of data Data from FlowsFrom to FlowsTo interrupted because Client cannot access Service: if client Client cannot access service Service, the end to end flow of data Data from FlowsFrom to FlowsTo that uses this client-service connection will be interrupted.
LossOfAccessibility
I.A.HLSISC.6.4

Authentication failure for device CHost at Service prevents connection to LogicalSubnet: the device CHost cannot connect to LogicalSubnet because it cannot authenticate with the authenticator service Service controlling access to the network.
LossOfAccessibility
P.A.HuirRACSPH.0

Loss of connectivity from Client to Service affects Process: because user Human interacts with Process via remote access client Client and the shell on SHost, if Client cannot connect to remote access service Service on SHost, Human will be unable to interact with Process which will be rendered non-operational.