Cisco IOS Switch NDM Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The Cisco switch 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
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The Cisco switch must be configured to protect against known types of denial-of-service (DoS) attacks by employing organization-defined security safeguards.
DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity. This require...Rule Medium Severity -
SRG-APP-000499-NDM-000319
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The Cisco switch 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 -
SRG-APP-000503-NDM-000320
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SRG-APP-000504-NDM-000321
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The Cisco switch must be configured to generate log records for privileged activities.
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 -
SRG-APP-000516-NDM-000336
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The Cisco switch must be configured to use at least two authentication servers to authenticate users prior to granting administrative access.
Centralized management of user accounts and authentication increases the administrative access to the switch. This control is particularly important protection against the insider threat. With ro...Rule High Severity -
SRG-APP-000516-NDM-000340
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SRG-APP-000516-NDM-000344
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The Cisco switch must be configured to obtain its public key certificates from an appropriate certificate policy through an approved service provider.
Each organization obtains user certificates from an approved, shared service provider as required by OMB policy. For federal agencies operating a legacy public key infrastructure cross-certified wi...Rule Medium Severity -
SRG-APP-000516-NDM-000350
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SRG-APP-000516-NDM-000351
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The Cisco switch must be configured to limit the number of concurrent management sessions to an organization-defined number.
Device management includes the ability to control the number of administrators and management sessions that manage a device. Limiting the number of allowed administrators and sessions per administr...Rule Medium Severity -
The Cisco switch must be configured to automatically audit account modification.
Because the accounts in the network device are privileged or system-level accounts, account management is vital to the security of the network device. Account management by a designated authority e...Rule Medium Severity -
The Cisco switch must be configured to automatically audit account disabling actions.
Account management, as a whole, ensures access to the network device is being controlled in a secure manner by granting access to only authorized personnel. Auditing account disabling actions will ...Rule Medium Severity -
The Cisco switch must be configured to enforce approved authorizations for controlling the flow of management information within the device based on control policies.
A mechanism to detect and prevent unauthorized communication flow must be configured or provided as part of the system design. If management information flow is not enforced based on approved autho...Rule Medium Severity -
The Cisco switch must be configured to enforce the limit of three consecutive invalid logon attempts, after which time it must lock out the user account from accessing the device for 15 minutes.
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.Rule Medium Severity
Node 2
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