AIX must require passwords to contain no more than three consecutive repeating characters.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-215232 | SRG-OS-000480-GPOS-00227 | AIX7-00-001136 | SV-215232r991589_rule | 2026-02-06 | 3 |
Description
Passwords with excessive repeating characters may be more vulnerable to password-guessing attacks.
ℹ️ Check
Check system default for "maxrepeats" attribute:
# lssec -f /etc/security/user -s default -a maxrepeats
default maxrepeats=3
If the default "maxrepeats" is greater than "3", or its value is not set, or its value is set to "0", this is a finding.
Check the "maxrepeats" setting for all users using:
# lsuser -a maxrepeats ALL
The above command should yield the following output:
root maxrepeats=3
daemon maxrepeats=3
bin maxrepeats=3
sys maxrepeats=3
If the "maxrepeats" setting for any user is greater than "3", or its value is set to "0", this is a finding.
✔️ Fix
Use the "chsec" command to set "maxrepeats" to "3" for the default stanza:
# chsec -f /etc/security/user -s default -a maxrepeats=3
Use the "chsec" command to set "maxrepeats" to "3" for all the users who have "maxrepeats" values that are greater than "3", or its value is set to "0":
# chuser maxrepeats=3 [user_name]