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SWLAN must be rekeyed at least every 90 days.


Finding ID Version Rule ID IA Controls Severity
V-30369 WIR0231 SV-40029r1_rule ECWN-1 High
The longer a key remains in use, the more likely it will be compromised. If an adversary can compromise an SWLAN key, then it can obtain classified information.
Harris SecNet 11 / 54 Security Technical Implementation Guide 2011-10-07


Check Text ( C-39044r1_chk )
Detailed Policy Requirements:

SWLAN system will be rekeyed at least every 90 days.

Check Procedures:

Interview IAO and obtain the site’s procedures for rekeying the WLAN. Mark a finding if the procedures do not exist or they do not include a requirement to rekey at least every 90 days.
Fix Text (F-34145r1_fix)
Write and implement rekeying procedures that specify the keys must be changed at least every 90 days.