Guide to the Secure Configuration of SUSE Linux Enterprise Micro 5
Rules, Groups, and Values defined within the XCCDF Benchmark
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Set Password Quality Requirements, if using pam_cracklib
The <code>pam_cracklib</code> PAM module can be configured to meet requirements for a variety of policies. <br> <br> For example, to configure <code>pam_cracklib</code> to require at least...Group -
Set Password Strength Minimum Digit Characters
The pam_cracklib module's <code>dcredit</code> parameter controls requirements for usage of digits in a password. When set to a negative number, any password will be required to contain that many d...Rule Medium Severity -
Set Password Strength Minimum Different Characters
The pam_cracklib module's <code>difok</code> parameter controls requirements for usage of different characters during a password change. The number of changed characters refers to the number of cha...Rule Medium Severity -
Set Password Strength Minimum Lowercase Characters
The pam_cracklib module's <code>lcredit=</code> parameter controls requirements for usage of lowercase letters in a password. When set to a negative number, any password will be required to contain...Rule Medium Severity -
Set Password Minimum Length
The pam_cracklib module's <code>minlen</code> parameter controls requirements for minimum characters required in a password. Add <code>minlen=<xccdf-1.2:sub idref="xccdf_org.ssgproject.content_valu...Rule Medium Severity -
Ensure There Are No Accounts With Blank or Null Passwords
Check the "/etc/shadow" file for blank passwords with the following command: <pre>$ sudo awk -F: '!$2 {print $1}' /etc/shadow</pre> If the command returns any results, this is a finding. Configure ...Rule High Severity -
Set Password Strength Minimum Special Characters
The pam_cracklib module's <code>ocredit=</code> parameter controls requirements for usage of special (or ``other'') characters in a password. When set to a negative number, any password will be req...Rule Medium Severity -
Set Password Retry Limit
The pam_cracklib module's <code>retry</code> parameter controls the maximum number of times to prompt the user for the password before returning with error. Make sure it is configured with a value ...Rule Medium Severity -
Set Password Strength Minimum Uppercase Characters
The pam_cracklib module's <code>ucredit=</code> parameter controls requirements for usage of uppercase letters in a password. When set to a negative number, any password will be required to contain...Rule Medium Severity -
Set Password Quality Requirements with pam_pwquality
The <code>pam_pwquality</code> PAM module can be configured to meet requirements for a variety of policies. <br> <br> For example, to configure <code>pam_pwquality</code> to require at lea...Group -
dcredit
Minimum number of digits in passwordValue -
difok
Minimum number of characters not present in old passwordValue -
lcredit
Minimum number of lower case in passwordValue -
minlen
Minimum number of characters in passwordValue -
ocredit
Minimum number of other (special characters) in passwordValue -
retry
Number of retry attempts before erroring outValue -
ucredit
Minimum number of upper case in passwordValue -
Set Password Hashing Algorithm
The system's default algorithm for storing password hashes in/etc/shadowis SHA-512. This can be configured in several locations.Group -
Set Password Hashing Algorithm in /etc/login.defs
In <code>/etc/login.defs</code>, add or update the following line to ensure the system will use <xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_password_hashing_algorithm" use="legacy"...Rule Medium Severity -
Verify All Account Password Hashes are Shadowed with SHA512
Verify the operating system requires the shadow password suite configuration be set to encrypt interactive user passwords using a strong cryptographic hash. Check that the interactive user account ...Rule Medium Severity
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