Check: CISC-ND-000150
Cisco NX OS Switch NDM STIG:
CISC-ND-000150
(in versions v2 r7 through v2 r3)
Title
The Cisco switch must be configured to enforce the limit of three consecutive invalid logon attempts, after which time it must disconnect the session. (Cat II impact)
Discussion
By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced.
Check Content
Review the Cisco switch configuration to verify that it enforces the limit of three consecutive invalid logon attempts as shown in the example below: ssh login-attempts 3 If the Cisco switch is not configured to enforce the limit of three consecutive invalid logon attempts, this is a finding. NOTE: The NX-OS switch does not lock out the account, it disconnects the session. The AAA server will lock out the user account on three failed attempts.
Fix Text
Configure the Cisco switch to enforce the limit of three consecutive invalid logon attempts as shown in the example below: SW2(config)# ssh login-attempts 3
Additional Identifiers
Rule ID: SV-220480r879546_rule
Vulnerability ID: V-220480
Group Title: SRG-APP-000065-NDM-000214
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000044 |
The information system enforces the organization-defined limit of consecutive invalid logon attempts by a user during the organization-defined time period. |
Controls
Number | Title |
---|---|
AC-7 |
Unsuccessful Logon Attempts |