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-23(3)

session authenticity  | unique session identifiers with randomization

assessment objective:

Determine if:

sc-23(3)[1]

the organization defines randomness requirements for generating a unique session identifier for each session;

sc-23(3)[2]

the information system generates a unique session identifier for each session with organization-defined randomness requirements; and

sc-23(3)[3]

the information system recognizes only session identifiers that are system-generated.

potential assessment methods and objects:

Examine: [select from: System and communications protection policy; procedures addressing session authenticity; 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].

Test: [select from: Automated mechanisms supporting and/or implementing generating and monitoring unique session identifiers; automated mechanisms supporting and/or implementing randomness requirements].