Detections
Analytics

1.401 OL09-00-003021

Information

OL 9 must automatically lock the root account until the root account is released by an administrator when three unsuccessful logon attempts occur during a 15-minute time period.

GROUP ID: V-271840
RULE ID: SV-271840r1092232

By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, also known as brute-forcing, is reduced. Limits are imposed by locking the account.

Satisfies: SRG-OS-000329-GPOS-00128, SRG-OS-000021-GPOS-00005

Solution

Configure OL 9 to lock out the "root" account after a number of incorrect login attempts using "pam_faillock.so", first enable the feature using the following command:

$ sudo authselect enable-feature with-faillock

Then edit the "/etc/security/faillock.conf" file as follows:

add or uncomment the following line:
even_deny_root

See Also

https://workbench.cisecurity.org/benchmarks/27024

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-7a., 800-53|AC-7b., CCI|CCI-000044, CCI|CCI-002238, Rule-ID|SV-271840r1092232_rule, STIG-ID|OL09-00-003021, Vuln-ID|V-271840

Plugin: Unix

Control ID: 4fafe1ccd2d5c9cc49a723d0075e53a29f28afa7488d5ebc0335db355e3c130c