From VMware NSX Distributed Logical Router Security Technical Implementation Guide
Part of SRG-NET-000025-RTR-000020
Associated with: CCI-000366 CCI-002205
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 learn confidential information about the site's network, or merely used to disrupt the network's ability to communicate with other networks. This is known as a "traffic attraction attack" and is prevented by configuring neighbor router authentication for routing updates.
Verify for OSPF that Authentication is not set to "None" and for BGP password has been configured. Log onto vSphere Web Client with credentials authorized for administration. Navigate and select Networking and Security >> select the "NSX Edges" tab on the left-side menu. Double-click the edgeID in question, as denoted by the "Logical Router" type. Select the "Manage" tab on the top of the new screen >> Routing. If OSPF is configured, select OSPF >> Area Definitions. Select the configured areas. Click the "pencil" icon. Verify "authentication" is set to something other than "none". If Authentication is set to "None", this is a finding. If BGP is configured, select BGP >> Neighbors >> select the configured neighbor >> Click the "pencil" icon >> verify "password" is configured. If a password has not been configured for BGP, this is a finding.
Log onto vSphere Web Client with credentials authorized for administration. Navigate and select Networking and Security >> select the "NSX Edges" tab on the left-side menu. Double-click the edgeID in question, as denoted by the "Logical Router" type. Select the "Manage" tab on the top of the new screen. >> Routing. If OSPF is configured, select the "OSPF" option on the left >> select Area Definitions >> select the configured areas. Click the "pencil" icon. Select an "authentication" method and configure a value. If BGP is configured select the "BGP" option on the left. Select Neighbors >> select the configured neighbor. Click the "pencil" icon. Add a password in the "password" section.
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