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I - Mission Critical Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must lock an account after three consecutive invalid access attempts.

    &lt;VulnDiscussion&gt;By limiting the number of failed access attempts, the risk of unauthorized system access via user password guessing, otherwis...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00226

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must enforce a delay of at least five seconds between logon prompts following a failed logon attempt via pluggable authentication modules (PAM).

    &lt;VulnDiscussion&gt;Limiting the number of logon attempts over a certain time interval reduces the chances that an unauthorized user may gain acc...
    Rule Medium Severity
    Show

  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must use the default pam_tally2 tally directory.

    &lt;VulnDiscussion&gt;By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...
    Rule Medium Severity
    Show

  • SRG-OS-000027-GPOS-00008

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must limit the number of concurrent sessions to 10 for all accounts and/or account types.

    &lt;VulnDiscussion&gt;SLEM 5 management includes the ability to control the number of users and user sessions that use a SLEM 5. Limiting the numbe...
    Rule Low Severity
    Show

  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must have policycoreutils package installed.

    &lt;VulnDiscussion&gt;Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed...
    Rule Low Severity
    Show

  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must use a Linux Security Module configured to enforce limits on system services.

    &lt;VulnDiscussion&gt;Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed...
    Rule High Severity
    Show

  • SRG-OS-000445-GPOS-00199

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must enable the SELinux targeted policy.

    &lt;VulnDiscussion&gt;Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed...
    Rule Medium Severity
    Show

  • SRG-OS-000324-GPOS-00125

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must prevent nonprivileged users from executing privileged functions, including disabling, circumventing, or altering implemented security safeguards/countermeasures.

    &lt;VulnDiscussion&gt;Preventing nonprivileged users from executing privileged functions mitigates the risk that unauthorized individuals or proces...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must use the invoking user's password for privilege escalation when using "sudo".

    &lt;VulnDiscussion&gt;The sudoers security policy requires that users authenticate themselves before they can use sudo. When sudoers requires authe...
    Rule Medium Severity
    Show

  • SRG-OS-000373-GPOS-00156

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must reauthenticate users when changing authenticators, roles, or escalating privileges.

    &lt;VulnDiscussion&gt;Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When SLEM 5 ...
    Rule Medium Severity
    Show

  • SRG-OS-000373-GPOS-00156

    <GroupDescription></GroupDescription>
    Group
    Show

  • SLEM 5 must require reauthentication when using the "sudo" command.

    &lt;VulnDiscussion&gt;Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When operati...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • SLEM 5 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
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must specify the default "include" directory for the /etc/sudoers file.

    &lt;VulnDiscussion&gt;The "sudo" command allows authorized users to run programs (including shells) as other users, system users, and root. The "/e...
    Rule Medium Severity
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  • SRG-OS-000069-GPOS-00037

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must enforce passwords that contain at least one uppercase character.

    &lt;VulnDiscussion&gt;Use of a complex password helps increase the time and resources required to compromise the password. Password complexity, or ...
    Rule Medium Severity
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  • SRG-OS-000070-GPOS-00038

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must enforce passwords that contain at least one lowercase character.

    &lt;VulnDiscussion&gt;Use of a complex password helps increase the time and resources required to compromise the password. Password complexity, or ...
    Rule Medium Severity
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  • SRG-OS-000071-GPOS-00039

    <GroupDescription></GroupDescription>
    Group
    Show

  • SLEM 5 must enforce passwords that contain at least one numeric character.

    &lt;VulnDiscussion&gt;Use of a complex password helps increase the time and resources required to compromise the password. Password complexity, or ...
    Rule Medium Severity
    Show

  • SRG-OS-000266-GPOS-00101

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must enforce passwords that contain at least one special character.

    &lt;VulnDiscussion&gt;Use of a complex password helps increase the time and resources required to compromise the password. Password complexity or s...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00225

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must prevent the use of dictionary words for passwords.

    &lt;VulnDiscussion&gt;If SLEM 5 allows the user to select passwords based on dictionary words, this increases the chances of password compromise by...
    Rule Medium Severity
    Show

  • SRG-OS-000078-GPOS-00046

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must employ passwords with a minimum of 15 characters.

    &lt;VulnDiscussion&gt;The shorter the password, the lower the number of possible combinations that need to be tested before the password is comprom...
    Rule Medium Severity
    Show

  • SRG-OS-000072-GPOS-00040

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must require the change of at least eight of the total number of characters when passwords are changed.

    &lt;VulnDiscussion&gt;If SLEM 5 allows the user to consecutively reuse extensive portions of passwords, this increases the chances of password comp...
    Rule Medium Severity
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  • SRG-OS-000077-GPOS-00045

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must not allow passwords to be reused for a minimum of five generations.

    &lt;VulnDiscussion&gt;Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute...
    Rule Medium Severity
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  • SRG-OS-000073-GPOS-00041

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must configure the Linux Pluggable Authentication Modules (PAM) to only store encrypted representations of passwords.

    &lt;VulnDiscussion&gt;Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must not be configured to allow blank or null passwords.

    &lt;VulnDiscussion&gt;Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are...
    Rule High Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must not have accounts configured with blank or null passwords.

    &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
    Show

  • SRG-OS-000075-GPOS-00043

    <GroupDescription></GroupDescription>
    Group
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  • SLEM 5 must employ user passwords with a minimum lifetime of 24 hours (one day).

    &lt;VulnDiscussion&gt;Enforcing a minimum password lifetime helps prevent repeated password changes to defeat the password reuse or history enforce...
    Rule Medium Severity
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Node 2

siemur/test-space

The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.

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