The Juniper perimeter router must not be configured to be a Border Gateway Protocol (BGP) peer to an alternate gateway service provider.
An XCCDF Rule
Description
<VulnDiscussion>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 be advertised to the ISP; thereby creating a backdoor connection from the internet to the NIPRNet.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-253990r844003_rule
- Severity
- High
- References
- Updated
Remediation - Manual Procedure
This requirement is not applicable for the DODIN Backbone.
Remove BGP neighbors belonging to the alternate gateway service provider.
delete protocols bgp group <name> neighbor <peer AS belonging to alternate gateway service provider>