Riverbed Optimization System (RiOS) must limit the number of concurrent sessions to one (1) for each administrator account and/or administrator account type.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-62867	RICX-DM-000034	SV-77357r1_rule		Medium

Description
Device management includes the ability to control the number of administrators and management sessions that manage a device. Limiting the number of allowed administrators and sessions per administrator is helpful in limiting risks related to DoS attacks. This requirement addresses concurrent sessions for administrative accounts and does not address concurrent sessions by a single administrator via multiple administrative accounts. The maximum number of concurrent sessions should be defined based upon mission needs and the operational environment for each system. Recommended best practice for authentication and authorization is to leverage an AAA server (e.g., TACACS or RADIUS). Password of Last Resort is not affected by this requirement. Note that this is a hidden CLI command. Access to the device management console is not affected by this command.

Description

Device management includes the ability to control the number of administrators and management sessions that manage a device. Limiting the number of allowed administrators and sessions per administrator is helpful in limiting risks related to DoS attacks. This requirement addresses concurrent sessions for administrative accounts and does not address concurrent sessions by a single administrator via multiple administrative accounts. The maximum number of concurrent sessions should be defined based upon mission needs and the operational environment for each system. Recommended best practice for authentication and authorization is to leverage an AAA server (e.g., TACACS or RADIUS). Password of Last Resort is not affected by this requirement. Note that this is a hidden CLI command. Access to the device management console is not affected by this command.

STIG	Date
Riverbed SteelHead CX v8 NDM Security Technical Implementation Guide	2019-10-01

Details

Check Text ( C-63661r1_chk )
Verify that RiOS is configured to limit the number of concurrent sessions to one (1) for each administrator account and/or administrator account type. This requirement does not apply to the Admin account. Navigate to the device CLI Type: enable Type: show username detailed Verify that "Maximum Logins" is set to "1" If "Maximum Logins" is not set to "1", this is a finding.

Fix Text (F-68785r1_fix)
Configure the number of concurrent sessions to an organization define number for each administrator account and/or administrator type account. Navigate to the device CLI Type: enable Type: conf t Type: authentication policy user max-logins 1 Type: write memory Settings are now saved to memory.