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III - Administrative Public

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000364-GPOS-00151

    <GroupDescription></GroupDescription>
    Group
  • The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not permit Kerberos authentication unless needed.

    &lt;VulnDiscussion&gt;Kerberos authentication for SSH is often implemented using Generic Security Service Application Program Interface (GSSAPI). I...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon performs strict mode checking of home directory configuration files.

    &lt;VulnDiscussion&gt;If other users have access to modify user-specific SSH configuration files, they may be able to log on to the system as anoth...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon uses privilege separation.

    &lt;VulnDiscussion&gt;SSH daemon privilege separation causes the SSH process to drop root privileges when not needed, which would decrease the impa...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow compression or only allows compression after successful authentication.

    &lt;VulnDiscussion&gt;If compression is allowed in an SSH connection prior to authentication, vulnerabilities in the compression software could res...
    Rule Medium Severity
  • SRG-OS-000355-GPOS-00143

    <GroupDescription></GroupDescription>
    Group
  • The Red Hat Enterprise Linux operating system must, for networked systems, synchronize clocks with a server that is synchronized to one of the redundant United States Naval Observatory (USNO) time servers, a time server designated for the appropriate DoD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS).

    &lt;VulnDiscussion&gt;Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Red Hat Enterprise Linux operating system must enable an application firewall, if available.

    &lt;VulnDiscussion&gt;Firewalls protect computers from network attacks by blocking or limiting access to open network ports. Application firewalls ...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Red Hat Enterprise Linux operating system must display the date and time of the last successful account logon upon logon.

    &lt;VulnDiscussion&gt;Providing users with feedback on when account accesses last occurred facilitates user recognition and reporting of unauthoriz...
    Rule Low Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Red Hat Enterprise Linux operating system must not contain .shosts files.

    &lt;VulnDiscussion&gt;The .shosts files are used to configure host-based authentication for individual users or the system via SSH. Host-based auth...
    Rule High Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Red Hat Enterprise Linux operating system must not contain shosts.equiv files.

    &lt;VulnDiscussion&gt;The shosts.equiv files are used to configure host-based authentication for the system via SSH. Host-based authentication is n...
    Rule High Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • For Red Hat Enterprise Linux operating systems using DNS resolution, at least two name servers must be configured.

    &lt;VulnDiscussion&gt;To provide availability for name resolution services, multiple redundant name servers are mandated. A failure in name resolut...
    Rule Low Severity

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