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II - Mission Support Public

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000112-GPOS-00057

    Group
  • Windows Server 2019 Kerberos user ticket lifetime must be limited to 10 hours or less.

    In Kerberos, there are two types of tickets: Ticket Granting Tickets (TGTs) and Service Tickets. Kerberos tickets have a limited lifetime so the time an attacker has to implement an attack is limit...
    Rule Medium Severity
  • SRG-OS-000112-GPOS-00057

    Group
  • Windows Server 2019 Kerberos policy user ticket renewal maximum lifetime must be limited to seven days or less.

    This setting determines the period of time (in days) during which a user's TGT may be renewed. This security configuration limits the amount of time an attacker has to crack the TGT and gain access...
    Rule Medium Severity
  • SRG-OS-000112-GPOS-00057

    Group
  • Windows Server 2019 computer clock synchronization tolerance must be limited to five minutes or less.

    This setting determines the maximum time difference (in minutes) that Kerberos will tolerate between the time on a client's clock and the time on a server's clock while still considering the two cl...
    Rule Medium Severity
  • SRG-OS-000118-GPOS-00060

    Group
  • Windows Server 2019 outdated or unused accounts must be removed or disabled.

    Outdated or unused accounts provide penetration points that may go undetected. Inactive accounts must be deleted if no longer necessary or, if still required, disabled until needed.
    Rule Medium Severity
  • SRG-OS-000120-GPOS-00061

    Group
  • Windows Server 2019 Kerberos encryption types must be configured to prevent the use of DES and RC4 encryption suites.

    Certain encryption types are no longer considered secure. The DES and RC4 encryption suites must not be used for Kerberos encryption. Note: Organizations with domain controllers running earlier ve...
    Rule Medium Severity

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