Check: UBTU-20-010050
Canonical Ubuntu 20.04 LTS STIG:
UBTU-20-010050
(in versions v1 r12 through v1 r1)
Title
The Ubuntu operating system must enforce password complexity by requiring that at least one upper-case character be used. (Cat III impact)
Discussion
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised.
Check Content
Verify the Ubuntu operating system enforces password complexity by requiring that at least one upper-case character be used. Determine if the field "ucredit" is set in the "/etc/security/pwquality.conf" file with the following command: $ grep -i "ucredit" /etc/security/pwquality.conf ucredit=-1 If the "ucredit" parameter is greater than "-1" or is commented out, this is a finding.
Fix Text
Add or update the "/etc/security/pwquality.conf" file to contain the "ucredit" parameter: ucredit=-1
Additional Identifiers
Rule ID: SV-238221r653838_rule
Vulnerability ID: V-238221
Group Title: SRG-OS-000069-GPOS-00037
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000192 |
The information system enforces password complexity by the minimum number of upper case characters used. |
Controls
Number | Title |
---|---|
IA-5 (1) |
Password-Based Authentication |