Applicable

(Y)es / (N)o

(C)onfidentiality

(I)ntegrity

(A)vailability

RPN

(C+I+A)

(S)atisfactory

L1

M2

H3

L1

M2

H3

L1

M2

H3

(O)ther than satisfactory +##

sc-3(2)

security function isolation  | access/flow control functions

assessment objective:

Determine if the information system isolates security functions enforcing:

sc-3(2)[1]

access control from nonsecurity functions;

sc-3(2)[2]

information flow control from nonsecurity functions;

sc-3(2)[3]

access control from other security functions; and

sc-3(2)[4]

information flow control from other security functions.

potential assessment methods and objects:

Examine: [select from: System and communications protection policy; procedures addressing security function isolation; list of critical security functions; information system design documentation; information system configuration settings and associated documentation; information system audit records; other relevant documents or records].

Interview: [select from: System/network administrators; organizational personnel with information security responsibilities; system developer].

Test: [select from: Isolation of security functions enforcing access and information flow control].