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Cisco NX OS Switch NDM Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-APP-000395-NDM-000310

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  • The Cisco switch 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
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  • SRG-APP-000395-NDM-000347

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  • The Cisco switch 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
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  • SRG-APP-000411-NDM-000330

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  • SRG-APP-000412-NDM-000331

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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
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  • SRG-APP-000495-NDM-000318

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  • 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
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  • SRG-APP-000503-NDM-000320

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  • The Cisco switch must be configured to generate audit records when successful/unsuccessful logon attempts occur.

    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
    Show

  • SRG-APP-000504-NDM-000321

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  • SRG-APP-000505-NDM-000322

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  • The Cisco switch must generate audit records showing starting and ending time for administrator access to the system.

    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
    Show

  • SRG-APP-000515-NDM-000325

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  • The Cisco switch must be configured to off-load log records onto a different system than the system being audited.

    Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity.
    Rule Medium Severity
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  • SRG-APP-000516-NDM-000336

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  • The Cisco switch must be configured to use at least two authentication servers for the purpose of authenticating 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 robu...
    Rule High Severity
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  • SRG-APP-000516-NDM-000340

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