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VMware vSphere 8.0 vCenter Appliance Photon OS 4.0 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must configure Secure Shell (SSH) to ignore user-specific known_host files.

    &lt;VulnDiscussion&gt;SSH trust relationships enable trivial lateral spread after a host compromise and therefore must be explicitly disabled. Indi...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must configure Secure Shell (SSH) to limit the number of allowed login attempts per connection.

    &lt;VulnDiscussion&gt;By setting the login attempt limit to a low value, an attacker will be forced to reconnect frequently, which severely limits ...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must configure Secure Shell (SSH) to restrict AllowTcpForwarding.

    &lt;VulnDiscussion&gt;While enabling TCP tunnels is a valuable function of sshd, this feature is not appropriate for use on single purpose applianc...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must configure Secure Shell (SSH) to restrict LoginGraceTime.

    &lt;VulnDiscussion&gt;By default, SSH unauthenticated connections are left open for two minutes before being closed. This setting is too permissive...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must be configured so that the x86 Ctrl-Alt-Delete key sequence is disabled on the command line.

    &lt;VulnDiscussion&gt;When the Ctrl-Alt-Del target is enabled, a locally logged-on user who presses Ctrl-Alt-Delete, when at the console, can reboo...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must not forward IPv4 or IPv6 source-routed packets.

    &lt;VulnDiscussion&gt;Source routing is an Internet Protocol mechanism that allows an IP packet to carry information, a list of addresses, that tel...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system must not respond to IPv4 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.&lt;/VulnDi...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The Photon operating system 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
  • The Photon operating system must prevent IPv4 Internet Control Message Protocol (ICMP) secure 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
  • The Photon operating system must not send IPv4 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

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