GEN000750 - The system must require at least eight characters be changed between the old and new passwords during a password change.

Information

To ensure password changes are effective in their goals, the system must ensure old and new passwords have significant differences. Without significant changes, new passwords may be easily guessed based on the value of a previously compromised password.

Solution

Use the chsec command to change mindiff to 8.

# chsec -f /etc/security/user -s default -a mindiff=8

# chuser mindiff=8 < user id >

See Also

https://iasecontent.disa.mil/stigs/zip/U_AIX_6-1_V1R14_STIG.zip

Item Details

Category: IDENTIFICATION AND AUTHENTICATION

References: 800-53|IA-5(1)(b), CAT|II, CCI|CCI-000195, Group-ID|V-22306, Rule-ID|SV-38677r2_rule, STIG-ID|GEN000750, Vuln-ID|V-22306

Plugin: Unix

Control ID: 68d521b871983decdb42e8cf852d81d4f76c66eaba768bb5ec52c5d278b6e804