The NSX-T Tier-0 Gateway must be configured to use a unique key for each autonomous system (AS) with which it peers.
An XCCDF Rule
Description
<VulnDiscussion>If the same keys are used between eBGP neighbors, the chance of a hacker compromising any of the BGP sessions increases. It is possible that a malicious user exists in one autonomous system who would know the key used for the eBGP session. This user would then be able to hijack BGP sessions with other trusted neighbors.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-251752r856693_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
To set authentication for BGP neighbors do the following:
From the NSX-T Manager web interface, go to Networking >> Tier-0 Gateways, and expand the target Tier-0 gateway.
Expand BGP. Next to BGP Neighbors, click on the number present to open the dialog, and then select "Edit" on the target BGP Neighbor.