The network element must not be configured with rotating keys used for authenticating IGP peers that have a duration exceeding 180 days.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-14667	NET0422	SV-15301r2_rule	IAKM-1 IAKM-2 IAKM-3	Low

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
Infrastructure L3 Switch Secure Technical Implementation Guide - Cisco	2013-10-08

Details

Check Text ( C-12696r3_chk )
Review key expirations. When configuring authentication for routing protocols that provide key chains, configure two rotating keys with overlapping expiration dates, both with 180-day expirations.

Fix Text (F-14125r3_fix)
The IAO or SA will ensure a key has an expiration of 180 days or less.