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SUSE Linux Enterprise Micro (SLEM) 5 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must be configured so that all network connections associated with SSH traffic terminate after becoming unresponsive.

    &lt;VulnDiscussion&gt;Terminating an unresponsive SSH session within a short time period reduces the window of opportunity for unauthorized personn...
    Rule Medium Severity
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  • SRG-OS-000126-GPOS-00066

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must deny direct logons to the root account using remote access via SSH.

    &lt;VulnDiscussion&gt;To ensure individual accountability and prevent unauthorized access, organizational users must be individually identified and...
    Rule Medium Severity
    Show

  • SRG-OS-000032-GPOS-00013

    <GroupDescription></GroupDescription>
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  • SLEM 5 SSH daemon must disable forwarded remote X connections for interactive users, unless to fulfill documented and validated mission requirements.

    &lt;VulnDiscussion&gt;The security risk of using X11 forwarding is that the client's X11 display server may be exposed to attack when the SSH clien...
    Rule Medium Severity
    Show

  • SRG-OS-000033-GPOS-00014

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must implement DOD-approved encryption to protect the confidentiality of SSH remote connections.

    &lt;VulnDiscussion&gt;Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote...
    Rule High Severity
    Show

  • SRG-OS-000125-GPOS-00065

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 SSH daemon must be configured to only use Message Authentication Codes (MACs) employing FIPS 140-2/140-3 approved cryptographic hash algorithms.

    &lt;VulnDiscussion&gt;Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote acce...
    Rule High Severity
    Show

  • SRG-OS-000250-GPOS-00093

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 SSH server must be configured to use only FIPS 140-2/140-3 validated key exchange algorithms.

    &lt;VulnDiscussion&gt;Without cryptographic integrity protections provided by FIPS 140-2/140-3 validated cryptographic algorithms, information can ...
    Rule High Severity
    Show

  • SRG-OS-000109-GPOS-00056

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must log SSH connection attempts and failures to the server.

    &lt;VulnDiscussion&gt;Remote access services, such as those providing remote access to network devices and information systems, which lack automate...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must display the date and time of the last successful account logon upon an SSH logon.

    &lt;VulnDiscussion&gt;Providing users with feedback on when account accesses via SSH last occurred facilitates user recognition and reporting of un...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 SSH daemon must be configured to not allow authentication using known hosts authentication.

    &lt;VulnDiscussion&gt;Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, ...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 SSH daemon must perform 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
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