Symantec ProxySG must be configured to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-94661	SYMP-NM-000050	SV-104491r1_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-forcing, is reduced.

STIG	Date
Symantec ProxySG NDM Security Technical Implementation Guide	2019-12-20

Details

Check Text ( C-93851r2_chk )
Verify the lockout policy is configured. 1. SSH into the ProxySG console, type "enable", press "Enter". 2. Enter the appropriate password, type "config", press "Enter". 3. Type "show security local-user-list", press "Enter". This should return a value of "3" for the "Max failed attempts" and "900" for the value of both the "lockout duration" and "reset interval" fields. If Symantec ProxySG is not configured to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period, this is a finding.

Check Text ( C-93851r2_chk )

Verify the lockout policy is configured.

1. SSH into the ProxySG console, type "enable", press "Enter".
2. Enter the appropriate password, type "config", press "Enter".
3. Type "show security local-user-list", press "Enter".

This should return a value of "3" for the "Max failed attempts" and "900" for the value of both the "lockout duration" and "reset interval" fields.

If Symantec ProxySG is not configured to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period, this is a finding.

Fix Text (F-100779r1_fix)
The lockout policy may be configured for both SSH and Web Management Console sessions. 1. SSH into the ProxySG console, type "enable", press "Enter". 2. Enter the appropriate password, type "config", press "Enter". 3. Type "security local-user-list edit local_user_database", press "Enter". 4. Type "lockout-duration 900", type "max-failed-attempts 3", press "Enter".