Applications used for nonlocal maintenance sessions must implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-62983	RICX-DM-000135	SV-77473r1_rule		Medium

Description
This requires the use of secure protocols instead of their unsecured counterparts, such as SSH instead of telnet, SCP instead of FTP, and HTTPS instead of HTTP. If unsecured protocols (lacking cryptographic mechanisms) are used for sessions, the contents of those sessions will be susceptible to eavesdropping, potentially putting sensitive data (including administrator passwords) at risk of compromise and potentially allowing hijacking of maintenance sessions.

Description

This requires the use of secure protocols instead of their unsecured counterparts, such as SSH instead of telnet, SCP instead of FTP, and HTTPS instead of HTTP. If unsecured protocols (lacking cryptographic mechanisms) are used for sessions, the contents of those sessions will be susceptible to eavesdropping, potentially putting sensitive data (including administrator passwords) at risk of compromise and potentially allowing hijacking of maintenance sessions.

STIG	Date
Riverbed SteelHead CX v8 NDM Security Technical Implementation Guide	2015-11-30

Details

Check Text ( C-63735r1_chk )
Verify that RiOS is configured to implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications. Navigate to the device CLI Type: enable Type: show configuration full Verify that "no telnet-server enable" is in the configuration Verify that "ssh server enable" is set in the configuration Verify that "web enable" is in the configuration Verify that "no web http enable" is in the configuration Verify that "web https enable" is in the configuration If any one of the above settings is missing from the configuration, this is a finding.

Check Text ( C-63735r1_chk )

Verify that RiOS is configured to implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications.

Navigate to the device CLI
Type: enable
Type: show configuration full
Verify that "no telnet-server enable" is in the configuration
Verify that "ssh server enable" is set in the configuration
Verify that "web enable" is in the configuration
Verify that "no web http enable" is in the configuration
Verify that "web https enable" is in the configuration

If any one of the above settings is missing from the configuration, this is a finding.

Fix Text (F-68901r1_fix)
Configure RiOS to implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications. Navigate to the device CLI Type: enable Type: config t Type: no telnet-server enable Type: ssh server enable Type: ssh server allowed-cyphers aes128-cbc, 3des-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr Type: web enable Type: no web http enable Type: web https enable Type: write memory Type: exit Type: exit

Fix Text (F-68901r1_fix)

Configure RiOS to implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications.

Navigate to the device CLI
Type: enable
Type: config t
Type: no telnet-server enable
Type: ssh server enable
Type: ssh server allowed-cyphers aes128-cbc, 3des-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr
Type: web enable
Type: no web http enable
Type: web https enable
Type: write memory
Type: exit
Type: exit