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II - Mission Support Public

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000003

    <GroupDescription></GroupDescription>
    Group
  • User accounts must be locked after 35 days of inactivity.

    &lt;VulnDiscussion&gt;Attackers that are able to exploit an inactive account can potentially obtain and maintain undetected access to an applicatio...
    Rule Medium Severity
  • SRG-OS-000480

    <GroupDescription></GroupDescription>
    Group
  • Login services for serial ports must be disabled.

    &lt;VulnDiscussion&gt;Login services should not be enabled on any serial ports that are not strictly required to support the mission of the system....
    Rule Medium Severity
  • SRG-OS-000480

    <GroupDescription></GroupDescription>
    Group
  • The nobody access for RPC encryption key storage service must be disabled.

    &lt;VulnDiscussion&gt;If login by the user "nobody" is allowed for secure RPC, there is an increased risk of system compromise. If keyserv holds a ...
    Rule Medium Severity
  • SRG-OS-000480

    <GroupDescription></GroupDescription>
    Group
  • X11 forwarding for SSH must be disabled.

    &lt;VulnDiscussion&gt;As enabling X11 Forwarding on the host can permit a malicious user to secretly open another X11 connection to another remote ...
    Rule Medium Severity
  • SRG-OS-000480

    <GroupDescription></GroupDescription>
    Group
  • Consecutive login attempts for SSH must be limited to 3.

    &lt;VulnDiscussion&gt;Setting the authentication login limit to a low value will disconnect the attacker and force a reconnect, which severely limi...
    Rule Low Severity
  • SRG-OS-000480

    <GroupDescription></GroupDescription>
    Group
  • The rhost-based authentication for SSH must be disabled.

    &lt;VulnDiscussion&gt;Setting this parameter forces users to enter a password when authenticating with SSH.&lt;/VulnDiscussion&gt;&lt;FalsePositive...
    Rule Medium Severity
  • SRG-OS-000480

    <GroupDescription></GroupDescription>
    Group
  • Direct root account login must not be permitted for SSH access.

    &lt;VulnDiscussion&gt;The system should not allow users to log in as the root user directly, as audited actions would be non-attributable to a spec...
    Rule Medium Severity
  • SRG-OS-000480

    <GroupDescription></GroupDescription>
    Group
  • Login must not be permitted with empty/null passwords for SSH.

    &lt;VulnDiscussion&gt;Permitting login without a password is inherently risky.&lt;/VulnDiscussion&gt;&lt;FalsePositives&gt;&lt;/FalsePositives&gt;&...
    Rule High Severity
  • SRG-OS-000163

    <GroupDescription></GroupDescription>
    Group
  • The operating system must terminate the network connection associated with a communications session at the end of the session or after 10 minutes of inactivity.

    &lt;VulnDiscussion&gt;This requirement applies to both internal and external networks. Terminating network connections associated with communicat...
    Rule Low Severity
  • SRG-OS-000480

    <GroupDescription></GroupDescription>
    Group
  • Host-based authentication for login-based services must be disabled.

    &lt;VulnDiscussion&gt;The use of .rhosts authentication is an insecure protocol and can be replaced with public-key authentication using Secure She...
    Rule Medium Severity

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