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I - Mission Critical Public

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000480-GPOS-00227

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  • The Photon operating system must log IPv4 packets with impossible addresses.

    The presence of "martian" packets (which have impossible addresses) as well as spoofed packets, source-routed packets, and redirects could be a sign of nefarious network activity. Logging these pac...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    Group
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  • The Photon operating system must use a reverse-path filter for IPv4 network traffic.

    Enabling reverse path filtering drops packets with source addresses that should not have been able to be received on the interface they were received on. It should not be used on systems that are r...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Photon operating system must not perform IPv4 packet forwarding.

    Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this software is used when not required, system network information may be unn...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Photon operating system must send TCP timestamps.

    TCP timestamps are used to provide protection against wrapped sequence numbers. It is possible to calculate system uptime (and boot time) by analyzing TCP timestamps. These calculated uptimes can h...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    Group
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  • The Photon operating system must be configured to protect the Secure Shell (SSH) public host key from unauthorized modification.

    If a public host key file is modified by an unauthorized user, the SSH service may be compromised.
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Photon operating system must be configured to protect the Secure Shell (SSH) private host key from unauthorized access.

    If an unauthorized user obtains the private SSH host key file, the host could be impersonated.
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Photon operating system must enforce password complexity on the root account.

    Password complexity rules must apply to all accounts on the system, including root. Without specifying the enforce_for_root flag, pam_pwquality does not apply complexity rules to the root user. Whi...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Photon operating system must disable systemd fallback DNS.

    Systemd contains an ability to set fallback DNS servers, which is used for DNS lookups in the event no system level DNS servers are configured or other DNS servers are specified in the Systemd reso...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Photon operating system must generate audit records for all access and modifications to the opasswd file.

    Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
    Rule Medium Severity
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  • SRG-OS-000250-GPOS-00093

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  • The Photon operating system must implement only approved Message Authentication Codes (MACs) to protect the integrity of remote access sessions.

    Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DOD nonpublic information systems by an auth...
    Rule High Severity
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Node 2

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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