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C2S for Red Hat Enterprise Linux 7

Rules and Groups employed by this XCCDF Profile

  • Disable telnet Service

    Make sure that the activation of the <code>telnet</code> service on system boot is disabled. The <code>telnet</code> socket can be disabled with t...
    Rule High Severity
  • TFTP Server

    TFTP is a lightweight version of the FTP protocol which has traditionally been used to configure networking equipment. However, TFTP provides littl...
    Group
  • Disable tftp Service

    The <code>tftp</code> service should be disabled. The <code>tftp</code> service can be disabled with the following command: <pre>$ sudo systemctl ...
    Rule High Severity
  • Print Support

    The Common Unix Printing System (CUPS) service provides both local and network printing support. A system running the CUPS service can accept print...
    Group
  • Disable the CUPS Service

    The cups service can be disabled with the following command:
    $ sudo systemctl mask --now cups.service
    Rule Unknown Severity
  • Proxy Server

    A proxy server is a very desirable target for a potential adversary because much (or all) sensitive data for a given infrastructure may flow throug...
    Group
  • Disable Squid if Possible

    If Squid was installed and activated, but the system does not need to act as a proxy server, then it should be disabled and removed.
    Group
  • Disable Squid

    The squid service can be disabled with the following command:
    $ sudo systemctl mask --now squid.service
    Rule Unknown Severity
  • Samba(SMB) Microsoft Windows File Sharing Server

    When properly configured, the Samba service allows Linux systems to provide file and print sharing to Microsoft Windows systems. There are two soft...
    Group
  • Disable Samba if Possible

    Even after the Samba server package has been installed, it will remain disabled. Do not enable this service unless it is absolutely necessary to pr...
    Group
  • Disable Samba

    The smb service can be disabled with the following command:
    $ sudo systemctl mask --now smb.service
    Rule Low Severity
  • SNMP Server

    The Simple Network Management Protocol allows administrators to monitor the state of network devices, including computers. Older versions of SNMP w...
    Group
  • Disable SNMP Server if Possible

    The system includes an SNMP daemon that allows for its remote monitoring, though it not installed by default. If it was installed and activated but...
    Group
  • Disable snmpd Service

    The snmpd service can be disabled with the following command:
    $ sudo systemctl mask --now snmpd.service
    Rule Low Severity
  • SSH Server

    The SSH protocol is recommended for remote login and remote file transfer. SSH provides confidentiality and integrity for data exchanged between tw...
    Group
  • Verify Group Who Owns SSH Server config file

    To properly set the group owner of /etc/ssh/sshd_config, run the command:
    $ sudo chgrp root /etc/ssh/sshd_config
    Rule Medium Severity
  • Verify Owner on SSH Server config file

    To properly set the owner of /etc/ssh/sshd_config, run the command:
    $ sudo chown root /etc/ssh/sshd_config 
    Rule Medium Severity
  • Verify Permissions on SSH Server config file

    To properly set the permissions of /etc/ssh/sshd_config, run the command:
    $ sudo chmod 0600 /etc/ssh/sshd_config
    Rule Medium Severity
  • Configure OpenSSH Server if Necessary

    If the system needs to act as an SSH server, then certain changes should be made to the OpenSSH daemon configuration file <code>/etc/ssh/sshd_confi...
    Group
  • Set SSH Client Alive Count Max to zero

    The SSH server sends at most <code>ClientAliveCountMax</code> messages during a SSH session and waits for a response from the SSH client. The optio...
    Rule Medium Severity

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