Assessment Objectives

In addition to relevant policies, standards and procedures, the assessor shall examine, interview, and/or test to determine if appropriately scoped evidence exists to support the claim that:

• NET-28_A01 a period of inactivity to terminate network connections associated with communications sessions is defined.
  Defined parameters: no longer than ten (10) minutes for privileged sessions and no longer than fifteen (15) minutes for user sessions
  Assessment rigor: 1
  Origin: 171A_3.13.9[a] 53A_R5_SC-10_ODP
• NET-28_A02 network connections associated with communications sessions are terminated at the end of the sessions.
  Defined parameters: no longer than ten (10) minutes for privileged sessions and no longer than fifteen (15) minutes for user sessions
  Assessment rigor: 1
  Origin: 171A_3.13.9[b] 53A_R5_SC-10
• NET-28_A03 network connections associated with communications sessions are terminated after the defined period of inactivity.
  Defined parameters: no longer than ten (10) minutes for privileged sessions and no longer than fifteen (15) minutes for user sessions
  Assessment rigor: 1
  Origin: 171A_3.13.9[c] 53A_R5_SC-10
• NET-28_A04 network connections are terminated when nonlocal maintenance is completed.
  Assessment rigor: 2
  Origin: 171A_R3_A.03.07.05.c[02]
• NET-28_A05 the time period of inactivity after which the system terminates a network connection associated with a communications session is defined.
  Defined parameters: no longer than ten (10) minutes for privileged sessions and no longer than fifteen (15) minutes for user sessions
  Assessment rigor: 2
  Origin: 171A_R3_A.03.13.09.ODP[01]
• NET-28_A06 the network connection associated with a communications session is terminated at the end of the session or after an organization-defined time period of inactivity.
  Defined parameters: no more than 30 minutes of inactivity
  Assessment rigor: 3
  Origin: SCF Created
• NET-28_A07 the network connection associated with a communications session is terminated at the end of the session or after <A.03.13.09.ODP[01]: time period> of inactivity.
  Defined parameters: no longer than 15 minutes
  Assessment rigor: NIST 800-171
  Origin: 171A_R3_A.03.13.09

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