Check: CISC-RT-000070
Cisco IOS XE Router RTR STIG:
CISC-RT-000070
(in versions v2 r4 through v1 r1)
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: boot network ip boot server ip bootp server ip dns server ip identd ip finger ip http server ip rcmd rcp-enable ip rcmd rsh-enable service config service finger service tcp-small-servers service udp-small-servers service pad If any unnecessary services are enabled, this is a finding.
Fix Text
Disable the following services if enabled as shown in the example below: R2(config)#no boot network R2(config)#no ip boot server R2(config)#no ip bootp server R2(config)#no ip dns server R2(config)#no ip identd R2(config)#no ip finger R2(config)#no ip http server R2(config)#no ip rcmd rcp-enable R2(config)#no ip rcmd rsh-enable R2(config)#no service config R2(config)#no service finger R2(config)#no service tcp-small-servers R2(config)#no service udp-small-servers R2(config)#no service pad
Additional Identifiers
Rule ID: SV-216647r531086_rule
Vulnerability ID: V-216647
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 |