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II - Mission Support Sensitive

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000163

    Group
  • The operating system must terminate all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for user sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity, except to fulfill documented and validated mission requirements.

    Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port th...
    Rule Medium Severity
  • SRG-OS-000184

    Group
  • The operating system must fail to a secure state if system initialization fails, shutdown fails, or aborts fail.

    Failure to a known safe state helps prevent systems from failing to a state that may cause loss of data or unauthorized access to system resources. Operating systems that fail suddenly and with no ...
    Rule Medium Severity
  • SRG-OS-000185

    Group
  • The operating system must protect the confidentiality and integrity of all information at rest.

    Information at rest refers to the state of information when it is located on a secondary storage device (e.g., disk drive and tape drive, when used for backups) within an operating system. This re...
    Rule Medium Severity
  • SRG-OS-000205

    Group
  • The operating system must generate error messages that provide information necessary for corrective actions without revealing information that could be exploited by adversaries.

    Any operating system providing too much information in error messages risks compromising the data and security of the structure, and content of error messages needs to be carefully considered by t...
    Rule Medium Severity
  • SRG-OS-000206

    Group
  • The operating system must reveal error messages only to authorized users.

    Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the operating system or pla...
    Rule Medium Severity

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