The operating system must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur.

From General Purpose Operating System SRG

Part of SRG-OS-000329-GPOS-00128

Associated with: CCI-002238

SV-71497r1_rule The operating system must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur.

Vulnerability discussion

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

Check content

Verify the operating system automatically locks an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. If it does not, this is a finding.

Fix text

Configure the operating system to automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made.

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