Check: CISC-RT-000070
Cisco IOS XR Router RTR STIG:
CISC-RT-000070
(in versions v2 r4 through v1 r0.1)
Title
The Cisco router must be configured to have all non-essential capabilities disabled. (Cat III impact)
Discussion
A compromised router introduces risk to the entire network infrastructure, as well as data resources that are accessible via the network. The perimeter defense has no oversight or control of attacks by malicious users within the network. Preventing network breaches from within is dependent on implementing a comprehensive defense-in-depth strategy, including securing each device connected to the network. This is accomplished by following and implementing all security guidance applicable for each node type. A fundamental step in securing each router is to enable only the capabilities required for operation.
Check Content
Review the router configuration to verify that the router does not have any unnecessary or non-secure services enabled. For example, the following commands should not be in the configuration: service ipv4 tcp-small-servers max-servers 10 service ipv4 udp-small-servers max-servers 10 http client vrf xxxxx telnet vrf default ipv4 server max-servers 1 If any unnecessary services are enabled, this is a finding.
Fix Text
Disable the following services if enabled as shown in the example below. RP/0/0/CPU0:R3(config)#no service ipv4 tcp-small-servers RP/0/0/CPU0:R3(config)#no service ipv4 udp-small-servers RP/0/0/CPU0:R3(config)#no http client vrf xxxxx RP/0/0/CPU0:R3(config)#no telnet ipv4 server
Additional Identifiers
Rule ID: SV-216741r531087_rule
Vulnerability ID: V-216741
Group Title: SRG-NET-000131-RTR-000035
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000381 |
The organization configures the information system to provide only essential capabilities. |
Controls
Number | Title |
---|---|
CM-7 |
Least Functionality |