VMware NSX 4.x Tier-0 Gateway Router Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-NET-000019-RTR-000003
Group -
The NSX Tier-0 Gateway router must be configured to disable Protocol Independent Multicast (PIM) on all interfaces that are not required to support multicast routing.
If multicast traffic is forwarded beyond the intended boundary, it could be intercepted by unauthorized or unintended personnel. Limiting where within the network a given multicast group's data is ...Rule High Severity -
SRG-NET-000019-RTR-000007
Group -
The NSX Tier-0 Gateway router must be configured to have all inactive interfaces removed.
An inactive interface is rarely monitored or controlled and may expose a network to an undetected attack on that interface. Unauthorized personnel with access to the communication facility could ga...Rule High Severity -
SRG-NET-000131-RTR-000035
Group -
The NSX Tier-0 Gateway router must be configured to have the Dynamic Host Configuration Protocol (DHCP) service disabled if not in use.
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 attack...Rule Low Severity -
SRG-NET-000168-RTR-000077
Group -
The NSX Tier-0 Gateway router must be configured to use encryption for Open Shortest Path First (OSPF) routing protocol authentication.
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 High Severity -
SRG-NET-000205-RTR-000014
Group -
SRG-NET-000230-RTR-000001
Group -
SRG-NET-000230-RTR-000002
Group -
The NSX Tier-0 Gateway must be configured to use a unique password for each autonomous system (AS) with which it peers.
If the same keys are used between External Border Gateway Protocol (eBGP) neighbors, the chance of a hacker compromising any of the BGP sessions increases. It is possible that a malicious user exis...Rule Medium Severity -
SRG-NET-000362-RTR-000113
Group -
The NSX Tier-0 Gateway router must be configured to have Internet Control Message Protocol (ICMP) unreachable notifications 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 NSX Tier-0 Gateway router must be configured to have Internet Control Message Protocol (ICMP) mask replies 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 NSX Tier-0 Gateway router must be configured to have Internet Control Message Protocol (ICMP) redirects 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-000362-RTR-000117
Group -
SRG-NET-000512-RTR-000001
Group
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