Detections
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1.29 CISC-RT-000480

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Information

The Cisco BGP switch must be configured to use a unique key for each autonomous system (AS) that it peers with.

GROUP ID: V-221102
RULE ID: SV-221102r999711

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.

Solution

Configure the switch to use unique keys for each AS that it peers with as shown in the example below:

SW1(config)# router bgp xx
SW1(config-router)# neighbor x.1.12.2
SW1(config-router-neighbor)# password yyyyyyyyy
SW1(config-router-neighbor)# exit
SW1(config-router)# neighbor x.2.44.4
SW1(config-router-neighbor)# password zzzzzzzzzz
SW1(config-router-neighbor)# end

See Also

https://workbench.cisecurity.org/benchmarks/22581

Item Details

Category: ACCESS CONTROL, CONFIGURATION MANAGEMENT

References: 800-53|AC-4(17), 800-53|CM-6b., CAT|II, CCI|CCI-000366, CCI|CCI-002205, CSCv7|14.4, Rule-ID|SV-221102r999711_rule, STIG-ID|CISC-RT-000480, Vuln-ID|V-221102

Plugin: Cisco

Control ID: a190dc1f6501dd4bef9721bfadd53648d877bd138fa0d650a535ea5c380a63ae