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The router must be configured so that rotating keys are not used for authenticating IGP peers that have a duration exceeding 180 days.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| SRG-NET-000025-RTR-000085 | SRG-NET-000025-RTR-000085 | SRG-NET-000025-RTR-000085_rule | Medium |
| Description |
|---|
| If the keys used for routing protocol authentication are guessed, the malicious user could create havoc within the network by advertising incorrect routes and redirecting traffic. Changing the keys frequently reduces the risk of them eventually being guessed. |
| STIG | Date |
|---|---|
| Router Security Requirements Guide | 2013-07-30 |
Details
| Check Text ( C-SRG-NET-000025-RTR-000085_chk ) |
|---|
| Review key expiration dates. When configuring authentication for routing protocols that provide key chains, configure two rotating keys with overlapping expiration dates, both with 180-day expiration dates. If two rotating keys with overlapping expiration dates, both with 180-day expiration dates are not configured, this is a finding. |
| Fix Text (F-SRG-NET-000025-RTR-000085_fix) |
|---|
| Configure the router to utilize two rotating keys with overlapping expiration dates, both with 180-day expiration dates for routing protocol authentication. |