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Guide to the Secure Configuration of Red Hat Enterprise Linux 7

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Enable TCP/IP syncookie support

    Normal TCP/IP networking is open to an attack known as SYN flooding. It is denial-of-service attack that prevents legitimate remote users from bein...
    Rule Medium Severity
  • Unmap kernel when running in userspace (aka KAISER)

    Speculation attacks against some high-performance processors can be used to bypass MMU permission checks and leak kernel data to userspace. This ca...
    Rule Medium Severity
  • Disable x86 vsyscall emulation

    Disabling it is roughly equivalent to booting with vsyscall=none, except that it will also disable the helpful warning if a program tries to use a ...
    Rule Low Severity
  • Kernel GCC plugin configuration

    Contains rules that check the configuration of GCC plugins used by the compiler
    Group
  • Configure Syslog

    The syslog service has been the default Unix logging mechanism for many years. It has a number of downsides, including inconsistent log format, lac...
    Group
  • Ensure rsyslog-gnutls is installed

    TLS protocol support for rsyslog is installed. The <code>rsyslog-gnutls</code> package can be installed with the following command: <pre> $ sudo y...
    Rule Medium Severity
  • Ensure rsyslog is Installed

    Rsyslog is installed by default. The rsyslog package can be installed with the following command:
     $ sudo yum install rsyslog
    Rule Medium Severity
  • Enable rsyslog Service

    The <code>rsyslog</code> service provides syslog-style logging by default on Red Hat Enterprise Linux 7. The <code>rsyslog</code> service can be e...
    Rule Medium Severity
  • Disable Logwatch on Clients if a Logserver Exists

    Does your site have a central logserver which has been configured to report on logs received from all systems? If so: <pre>$ sudo rm /etc/cron.dail...
    Rule Unknown Severity
  • Ensure rsyslog Default File Permissions Configured

    rsyslog will create logfiles that do not already exist on the system. This settings controls what permissions will be applied to these newly create...
    Rule Medium Severity

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