Cisco IOS Router NDM Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-APP-000190-NDM-000267
Group -
The Cisco router must be configured to terminate all network connections associated with device management after five minutes of inactivity.
Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port th...Rule High Severity -
SRG-APP-000319-NDM-000283
Group -
SRG-APP-000357-NDM-000293
Group -
The Cisco router must be configured to allocate audit record storage capacity in accordance with organization-defined audit record storage requirements.
In order to ensure network devices have a sufficient storage capacity in which to write the audit logs, they need to be able to allocate audit record storage capacity. The task of allocating audit ...Rule Medium Severity -
SRG-APP-000360-NDM-000295
Group -
The Cisco router must be configured to generate an alert for all audit failure events.
It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without a real-time alert, security personnel may be unaware of an impe...Rule Medium Severity -
SRG-APP-000373-NDM-000298
Group -
SRG-APP-000395-NDM-000310
Group -
SRG-APP-000395-NDM-000310
Group -
The Cisco router must be configured to encrypt SNMP messages using a FIPS 140-2 approved algorithm.
Without the strong encryption that is provided by the SNMP Version 3 User-based Security Model (USM), an unauthorized user can gain access to network management information that can be used to crea...Rule Medium Severity -
SRG-APP-000395-NDM-000347
Group -
The Cisco router must be configured to authenticate Network Time Protocol (NTP) sources using authentication that is cryptographically based.
If Network Time Protocol is not authenticated, an attacker can introduce a rogue NTP server. This rogue server can then be used to send incorrect time information to network devices, which will mak...Rule Medium Severity -
SRG-APP-000411-NDM-000330
Group -
The Cisco router must be configured to use FIPS-validated Keyed-Hash Message Authentication Code (HMAC) to protect the integrity of remote maintenance sessions.
Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be ...Rule High Severity -
SRG-APP-000412-NDM-000331
Group -
The Cisco router must be configured to implement cryptographic mechanisms to protect the confidentiality of remote maintenance sessions.
This requires the use of secure protocols instead of their unsecured counterparts, such as SSH instead of telnet, SCP instead of FTP, and HTTPS instead of HTTP. If unsecured protocols (lacking cryp...Rule High Severity -
SRG-APP-000435-NDM-000315
Group -
SRG-APP-000499-NDM-000319
Group -
The Cisco router must be configured to generate log records when administrator privileges are deleted.
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an in...Rule Medium Severity
Node 2
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