The Cisco router must be configured to enforce the limit of three consecutive invalid logon attempts after which time lock out the user account from accessing the device for 15 minutes.
An XCCDF Rule
Description
<VulnDiscussion>By limiting the number of failed login attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-216524r960840_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Step 1: Configure the router to use an authentication server as shown in the following example:
RP/0/0/CPU0:R3(config)#radius-server host 10.1.3.16 key xxxxxxxx
Step 2: Configure the authentication order to use the authentication server as primary source for authentication as shown in the following example: