GEN000460 - The system must disable accounts after three consecutive unsuccessful login attempts.

Information

Disabling accounts after a limited number of unsuccessful login attempts improves protection against password guessing attacks.

Solution

Use the chsec command to configure the number of unsuccessful logins resulting in account lockout.
# chsec -f /etc/security/user -s default -a loginretries=3
# chsec -f /etc/security/user -s <user id> -a loginretries=3

See Also

http://iasecontent.disa.mil/stigs/zip/U_STIG_Library_2015_07.zip