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II - Mission Support Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000480-GPOS-00227

    Group
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  • The Oracle Linux operating system must display the date and time of the last successful account logon upon an SSH logon.

    Providing users with feedback on when account accesses via SSH last occurred facilitates user recognition and reporting of unauthorized account use.
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    Group
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  • The Oracle Linux operating system must not permit direct logons to the root account using remote access via SSH.

    Even though the communications channel may be encrypted, an additional layer of security is gained by extending the policy of not logging on directly as root. In addition, logging on with a user-sp...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    Group
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  • The Oracle Linux operating system must be configured so that the SSH daemon does not allow authentication using known hosts authentication.

    Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, even in the event of misconfiguration elsewhere.
    Rule Medium Severity
    Show

  • SRG-OS-000074-GPOS-00042

    Group
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  • The Oracle Linux operating system must be configured so that the SSH daemon is configured to only use the SSHv2 protocol.

    SSHv1 is an insecure implementation of the SSH protocol and has many well-known vulnerability exploits. Exploits of the SSH daemon could provide immediate root access to the system. Satisfies: SRG...
    Rule High Severity
    Show

  • SRG-OS-000250-GPOS-00093

    Group
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  • The Oracle Linux operating system must be configured so that the SSH daemon is configured to only use Message Authentication Codes (MACs) employing FIPS 140-2 approved cryptographic hash algorithms.

    DoD information systems are required to use FIPS 140-2 approved cryptographic hash functions. The only SSHv2 hash algorithm meeting this requirement is SHA. The system will attempt to use the firs...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    Group
    Show

  • The Oracle Linux operating system must be configured so that the SSH public host key files have mode 0644 or less permissive.

    If a public host key file is modified by an unauthorized user, the SSH service may be compromised.
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    Group
    Show

  • The Oracle Linux operating system must be configured so the SSH private host key files have mode 0640 or less permissive.

    If an unauthorized user obtains the private SSH host key file, the host could be impersonated.
    Rule Medium Severity
    Show

  • SRG-OS-000364-GPOS-00151

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  • The Oracle Linux operating system must be configured so that the SSH daemon does not permit Generic Security Service Application Program Interface (GSSAPI) authentication unless needed.

    GSSAPI authentication is used to provide additional authentication mechanisms to applications. Allowing GSSAPI authentication through SSH exposes the system's GSSAPI to remote hosts, increasing the...
    Rule Medium Severity
    Show

  • SRG-OS-000364-GPOS-00151

    Group
    Show

  • The Oracle Linux operating system must be configured so that the SSH daemon does not permit Kerberos authentication unless needed.

    Kerberos authentication for SSH is often implemented using Generic Security Service Application Program Interface (GSSAPI). If Kerberos is enabled through SSH, the SSH daemon provides a means of ac...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    Group
    Show

  • The Oracle Linux operating system must be configured so that the SSH daemon performs strict mode checking of home directory configuration files.

    If other users have access to modify user-specific SSH configuration files, they may be able to log on to the system as another user.
    Rule Medium Severity
    Show

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siemur/test-space

The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.

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