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The Photon operating system must automatically lock an account when three unsuccessful logon attempts occur.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-239074 | PHTN-67-000002 | SV-239074r856034_rule | Medium |
| 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. Satisfies: SRG-OS-000021-GPOS-00005, SRG-OS-000329-GPOS-00128 |
| STIG | Date |
|---|---|
| VMware vSphere 6.7 Photon OS Security Technical Implementation Guide | 2022-09-27 |
Details
| Check Text ( C-42285r675028_chk ) |
|---|
| At the command line, execute the following command: # grep pam_tally2 /etc/pam.d/system-auth|grep --color=always "deny=." Expected result: auth required pam_tally2.so file=/var/log/tallylog deny=3 onerr=fail even_deny_root unlock_time=86400 root_unlock_time=300 If the output does not match the expected result, this is a finding. |
| Fix Text (F-42244r675029_fix) |
|---|
| Open /etc/pam.d/system-auth with a text editor. Add the following line after the last auth statement: auth required pam_tally2.so file=/var/log/tallylog deny=3 onerr=fail even_deny_root unlock_time=86400 root_unlock_time=300 |