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CCE
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CCE-90869-9

Platform: cpe:/o:centos:centos:7, cpe:/o:redhat:enterprise_linux:7Date: (C)2017-06-29   (M)2023-07-04



To configure the system to lock out accounts after a number of incorrect login attempts and require an administrator to unlock the account using 'pam_faillock.so', modify the content of both '/etc/pam.d/system-auth' and '/etc/pam.d/password-auth' as follows: add the following line immediately 'before' the 'pam_unix.so' statement in the 'AUTH' section: auth required pam_faillock.so preauth silent deny=3 unlock_time=1800 fail_interval=900 add the following line immediately 'after' the 'pam_unix.so' statement in the 'AUTH' section: auth [default=die] pam_faillock.so authfail deny=3 unlock_time=1800 fail_interval=900 add the following line immediately 'before' the 'pam_unix.so' statement in the 'ACCOUNT' section: account required pam_faillock.so


Parameter:

[1800_seconds]


Technical Mechanism:

Locking out user accounts after a number of incorrect attempts prevents direct password guessing attacks. Ensuring that an administrator is involved in unlocking locked accounts draws appropriate attention to such situations.

CCSS Severity:CCSS Metrics:
CCSS Score : 7.5Attack Vector: NETWORK
Exploit Score: 3.9Attack Complexity: LOW
Impact Score: 3.6Privileges Required: NONE
Severity: HIGHUser Interaction: NONE
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HScope: UNCHANGED
 Confidentiality: NONE
 Integrity: NONE
 Availability: HIGH
  

References:
Resource IdReference
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:31260
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:30537


OVAL    2
oval:org.secpod.oval:def:30537
oval:org.secpod.oval:def:31260
XCCDF    2
xccdf_org.secpod_benchmark_general_CENTOS_7
xccdf_org.secpod_benchmark_general_RHEL_7

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