Cisco IOS XE Router RTR Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
-
SRG-NET-000018-RTR-000001
Group -
SRG-NET-000168-RTR-000078
Group -
The Cisco router must be configured to enable routing protocol authentication using FIPS 198-1 algorithms with keys not exceeding 180 days of lifetime.
A rogue router could send a fictitious routing update to convince a site's perimeter router to send traffic to an incorrect or even a rogue destination. This diverted traffic could be analyzed to l...Rule Medium Severity -
SRG-NET-000019-RTR-000007
Group -
SRG-NET-000362-RTR-000109
Group -
The Cisco router must not be configured to have any zero-touch deployment feature enabled when connected to an operational network.
Network devices that are configured via a zero-touch deployment or auto-loading feature can have their startup configuration or image pushed to the device for installation via TFTP or Remote Copy (...Rule Medium Severity -
SRG-NET-000362-RTR-000110
Group -
SRG-NET-000362-RTR-000111
Group -
SRG-NET-000362-RTR-000112
Group -
SRG-NET-000362-RTR-000113
Group -
The Cisco router must be configured to have Internet Control Message Protocol (ICMP) unreachable messages disabled on all external interfaces.
The ICMP supports IP traffic by relaying information about paths, routes, and network conditions. Routers automatically send ICMP messages under a wide variety of conditions. Host unreachable ICMP ...Rule Medium Severity -
SRG-NET-000362-RTR-000114
Group -
The Cisco router must be configured to have Internet Control Message Protocol (ICMP) mask reply messages disabled on all external interfaces.
The ICMP supports IP traffic by relaying information about paths, routes, and network conditions. Routers automatically send ICMP messages under a wide variety of conditions. Mask Reply ICMP messag...Rule Medium Severity -
SRG-NET-000362-RTR-000115
Group -
The Cisco router must be configured to have Internet Control Message Protocol (ICMP) redirect messages disabled on all external interfaces.
The ICMP supports IP traffic by relaying information about paths, routes, and network conditions. Routers automatically send ICMP messages under a wide variety of conditions. Redirect ICMP messages...Rule Medium Severity -
SRG-NET-000078-RTR-000001
Group -
SRG-NET-000076-RTR-000001
Group -
SRG-NET-000077-RTR-000001
Group -
SRG-NET-000019-RTR-000001
Group -
SRG-NET-000202-RTR-000001
Group -
The Cisco perimeter router must be configured to deny network traffic by default and allow network traffic by exception.
A deny-all, permit-by-exception network communications traffic policy ensures that only connections that are essential and approved are allowed. This requirement applies to both inbound and outbou...Rule High Severity -
SRG-NET-000019-RTR-000002
Group -
The Cisco perimeter router must be configured to enforce approved authorizations for controlling the flow of information between interconnected networks in accordance with applicable policy.
Information flow control regulates authorized information to travel within a network and between interconnected networks. Controlling the flow of network traffic is critical so it does not introduc...Rule Medium Severity -
SRG-NET-000364-RTR-000109
Group -
SRG-NET-000364-RTR-000110
Group -
The Cisco perimeter router must be configured to block inbound packets with source Bogon IP address prefixes.
Packets with Bogon IP source addresses should never be allowed to traverse the IP core. Bogon IP networks are RFC1918 addresses or address blocks that have never been assigned by the IANA or have b...Rule Medium Severity -
SRG-NET-000019-RTR-000008
Group -
SRG-NET-000019-RTR-000009
Group -
The Cisco perimeter router must be configured to not be a Border Gateway Protocol (BGP) peer to an alternate gateway service provider.
ISPs use BGP to share route information with other autonomous systems (i.e. other ISPs and corporate networks). If the perimeter router was configured to BGP peer with an ISP, NIPRnet routes could ...Rule High Severity -
SRG-NET-000019-RTR-000010
Group -
SRG-NET-000205-RTR-000003
Group -
SRG-NET-000205-RTR-000004
Group -
The Cisco perimeter router must be configured to filter ingress traffic at the external interface on an inbound direction.
Access lists are used to separate data traffic into that which it will route (permitted packets) and that which it will not route (denied packets). Secure configuration of routers makes use of acce...Rule Medium Severity -
SRG-NET-000205-RTR-000005
Group -
The Cisco perimeter router must be configured to filter egress traffic at the internal interface on an inbound direction.
Access lists are used to separate data traffic into that which it will route (permitted packets) and that which it will not route (denied packets). Secure configuration of routers makes use of acce...Rule Medium Severity -
SRG-NET-000364-RTR-000111
Group -
SRG-NET-000364-RTR-000111
Group -
SRG-NET-000364-RTR-000112
Group -
SRG-NET-000364-RTR-000113
Group -
SRG-NET-000205-RTR-000009
Group -
SRG-NET-000205-RTR-000010
Group -
SRG-NET-000019-RTR-000011
Group -
The Cisco out-of-band management (OOBM) gateway router must be configured to have separate Interior Gateway Protocol (IGP) instances for the managed network and management network.
If the gateway router is not a dedicated device for the OOBM network, implementation of several safeguards for containment of management and production traffic boundaries must occur. Since the mana...Rule Medium Severity -
SRG-NET-000019-RTR-000012
Group -
SRG-NET-000205-RTR-000011
Group -
SRG-NET-000205-RTR-000012
Group -
SRG-NET-000205-RTR-000013
Group -
The Cisco router providing connectivity to the Network Operations Center (NOC) must be configured to forward all in-band management traffic via an IPsec tunnel.
When the production network is managed in-band, the management network could be housed at a NOC that is located remotely at single or multiple interconnected sites. NOC interconnectivity, as well a...Rule Medium Severity -
SRG-NET-000018-RTR-000002
Group -
The Cisco BGP router must be configured to reject inbound route advertisements for any Bogon prefixes.
Accepting route advertisements for Bogon prefixes can result in the local autonomous system (AS) becoming a transit for malicious traffic as it will in turn advertise these prefixes to neighbor aut...Rule Medium Severity
Node 2
The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.