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III - Administrative Sensitive

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must define default permissions for logon and non-logon shells.

    &lt;VulnDiscussion&gt;The umask controls the default access mode assigned to newly created files. A umask of 077 limits new files to mode 600 or le...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must disable access to network bpf syscall from unprivileged processes.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must enable hardening for the Berkeley Packet Filter Just-in-time compiler.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must enable the hardware random number generator entropy gatherer service.

    &lt;VulnDiscussion&gt;The most important characteristic of a random number generator is its randomness, namely its ability to deliver random number...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must ensure the SSH server uses strong entropy.

    &lt;VulnDiscussion&gt;The most important characteristic of a random number generator is its randomness, namely its ability to deliver random number...
    Rule Low Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must have the packages required to use the hardware random number generator entropy gatherer service.

    &lt;VulnDiscussion&gt;The most important characteristic of a random number generator is its randomness, namely its ability to deliver random number...
    Rule Low Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must ignore IPv4 Internet Control Message Protocol (ICMP) redirect messages.

    &lt;VulnDiscussion&gt;ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. Thes...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must ignore IPv6 Internet Control Message Protocol (ICMP) redirect messages.

    &lt;VulnDiscussion&gt;ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. Thes...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must not accept router advertisements on all IPv6 interfaces by default.

    &lt;VulnDiscussion&gt;Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this s...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must not accept router advertisements on all IPv6 interfaces.

    &lt;VulnDiscussion&gt;Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this s...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must not allow blank or null passwords in the password-auth file.

    &lt;VulnDiscussion&gt;If an account has an empty password, anyone could log on and run commands with the privileges of that account. Accounts with ...
    Rule High Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must not allow interfaces to perform Internet Control Message Protocol (ICMP) redirects by default.

    &lt;VulnDiscussion&gt;ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. Thes...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must not forward IPv4 source-routed packets by default.

    &lt;VulnDiscussion&gt;Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than c...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must not forward IPv4 source-routed packets.

    &lt;VulnDiscussion&gt;Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than c...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must not forward IPv6 source-routed packets by default.

    &lt;VulnDiscussion&gt;Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than c...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must not forward IPv6 source-routed packets.

    &lt;VulnDiscussion&gt;Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than c...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must not respond to Internet Control Message Protocol (ICMP) echoes sent to a broadcast address.

    &lt;VulnDiscussion&gt;Responding to broadcast ICMP echoes facilitates network mapping and provides a vector for amplification attacks. There are n...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must not send Internet Control Message Protocol (ICMP) redirects.

    &lt;VulnDiscussion&gt;ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. Thes...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must prevent IPv4 Internet Control Message Protocol (ICMP) redirect messages from being accepted.

    &lt;VulnDiscussion&gt;ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. Thes...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must prevent IPv6 Internet Control Message Protocol (ICMP) redirect messages from being accepted.

    &lt;VulnDiscussion&gt;ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. Thes...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must restrict exposed kernel pointer addresses access.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must restrict privilege elevation to authorized personnel.

    &lt;VulnDiscussion&gt;The sudo command allows a user to execute programs with elevated (administrator) privileges. It prompts the user for their pa...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS must use reverse path filtering on all IPv4 interfaces.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • TOSS network interfaces must not be in promiscuous mode.

    &lt;VulnDiscussion&gt;Network interfaces in promiscuous mode allow for the capture of all network traffic visible to the system. If unauthorized in...
    Rule Medium Severity
  • SRG-OS-000312-GPOS-00122

    <GroupDescription></GroupDescription>
    Group
  • TOSS must enable kernel parameters to enforce discretionary access control on symlinks.

    &lt;VulnDiscussion&gt;Discretionary Access Control (DAC) is based on the notion that individual users are "owners" of objects and therefore have di...
    Rule Medium Severity

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