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Guide to the Secure Configuration of Red Hat Enterprise Linux 7

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Set nftables Configuration for Loopback Traffic

    Configure the loopback interface to accept traffic. Configure all other interfaces to deny traffic to the loopback network.
    Rule Medium Severity
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  • Network Manager

    The NetworkManager daemon configures a variety of network connections. This section discusses how to configure NetworkManager.
    Group
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  • NetoworkManager DNS Mode

    This sets how NetworkManager handles DNS. none - NetworkManager will not modify resolv.conf. default - NetworkManager will update /etc/resolv.con...
    Value
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  • Verify that All World-Writable Directories Have Sticky Bits Set

    When the so-called 'sticky bit' is set on a directory, only the owner of a given file may remove that file from the directory. Without the sticky b...
    Rule Medium Severity
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  • Uninstall 389-ds-base Package

    The 389-ds-base RPM is not installed by default on a Red Hat Enterprise Linux 7 system. It is needed only by the 389-ds server, not by the clients ...
    Rule Low Severity
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  • Ensure All SGID Executables Are Authorized

    The SGID (set group id) bit should be set only on files that were installed via authorized means. A straightforward means of identifying unauthoriz...
    Rule Medium Severity
    Show

  • Ensure All Files Are Owned by a Group

    If any file is not group-owned by a group present in /etc/group, the cause of the lack of group-ownership must be investigated. Following this, tho...
    Rule Medium Severity
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  • Verify Permissions and Ownership of Old Passwords File

    To properly set the owner of <code>/etc/security/opasswd</code>, run the command: <pre>$ sudo chown root /etc/security/opasswd </pre> To properly ...
    Rule Medium Severity
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  • Verify Group Who Owns /etc/shells File

    To properly set the group owner of /etc/shells, run the command: 
    $ sudo chgrp root /etc/shells
    Rule Medium Severity
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  • Verify Who Owns /etc/shells File

    To properly set the owner of /etc/shells, run the command: 
    $ sudo chown root /etc/shells
    Rule Medium Severity
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  • Verify Permissions on group File

    To properly set the permissions of /etc/group, run the command: 
    $ sudo chmod 0644 /etc/group
    Rule Medium Severity
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  • Verify Permissions on /etc/shells File

    To properly set the permissions of /etc/shells, run the command: 
    $ sudo chmod 0644 /etc/shells
    Rule Medium Severity
    Show

  • Verify that audit tools are owned by group root

    The Red Hat Enterprise Linux 7 operating system audit tools must have the proper ownership configured to protected against unauthorized access. Ve...
    Rule Medium Severity
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  • Verify that audit tools are owned by root

    The Red Hat Enterprise Linux 7 operating system audit tools must have the proper ownership configured to protected against unauthorized access. Ve...
    Rule Medium Severity
    Show

  • Verify that audit tools Have Mode 0755 or less

    The Red Hat Enterprise Linux 7 operating system audit tools must have the proper permissions configured to protected against unauthorized access. ...
    Rule Medium Severity
    Show

  • Add nosuid Option to /var

    The <code>nosuid</code> mount option can be used to prevent execution of setuid programs in <code>/var</code>. The SUID and SGID permissions should...
    Rule Medium Severity
    Show

  • Ensure that /etc/cron.allow exists

    The file /etc/cron.allow should exist and should be used instead of /etc/cron.deny.
    Rule Medium Severity
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  • Uninstall dnsmasq Package

    dnsmasq is a lightweight tool that provides DNS caching, DNS forwarding and DHCP (Dynamic Host Configuration Protocol) services. <br> The <code>dns...
    Rule Low Severity
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  • Remove ftp Package

    FTP (File Transfer Protocol) is a traditional and widely used standard tool for transferring files between a server and clients over a network, esp...
    Rule Low Severity
    Show

  • Configure Firewalls to Protect the FTP Server

    By default, <code>firewalld</code> blocks access to the ports used by the web server. To configure <code>firewalld</code> to allow <code>ftp</co...
    Rule Unknown Severity
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