The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-203594 | SRG-OS-000021 | SRG-OS-000021-GPOS-00005 | SV-203594r958388_rule | 2025-09-22 | 3 |
Description
By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account.
ℹ️ Check
Verify that the operating system enforces the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If it does not, this is a finding.
✔️ Fix
Configure the operating system to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period.