III - Administrative Public
Rules and Groups employed by this XCCDF Profile
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SRG-NET-000062
Group -
AOS must use Transport Layer Security (TLS) 1.2, at a minimum, to protect the confidentiality of sensitive data during electronic dissemination using remote access.
Using older unauthorized versions or incorrectly configuring protocol negotiation makes the gateway vulnerable to known and unknown attacks that exploit vulnerabilities in this protocol. This requ...Rule Medium Severity -
SRG-NET-000069
Group -
AOS must protect wireless access to the network using authentication of users and/or devices.
Allowing devices and users to connect to the system without first authenticating them allows untrusted access and can lead to a compromise or attack. The security boundary of a wireless local area...Rule Medium Severity -
SRG-NET-000070
Group -
The network element must protect wireless access to the system using Federal Information Processing Standard (FIPS)-validated Advanced Encryption Standard (AES) block cipher algorithms with an approved confidentiality mode.
Allowing devices and users to connect to the system without first authenticating them allows untrusted access and can lead to a compromise or attack. Because wireless communications can be intercep...Rule Medium Severity -
SRG-NET-000131
Group -
AOS must be configured to disable nonessential capabilities.
It is detrimental for network elements to provide, or enable by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked ...Rule Medium Severity -
SRG-NET-000193
Group -
AOS must manage excess bandwidth to limit the effects of packet flooding types of denial-of-service (DoS) attacks.
A network element experiencing a DoS attack will not be able to handle production traffic load. The high utilization and CPU caused by a DoS attack will also have an effect on control keep-alives a...Rule Medium Severity -
SRG-NET-000338
Group -
AOS must require devices to reauthenticate when organization-defined circumstances or situations requiring reauthentication.
Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity on the network. In addition to the reauthentication requirements associa...Rule Medium Severity -
SRG-NET-000343
Group -
The network element must authenticate all network-connected endpoint devices before establishing any connection.
Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. For distributed architectures (e.g., service-oriented architectures), th...Rule Medium Severity -
SRG-NET-000352
Group -
AOS must use cryptographic algorithms approved by the National Security Agency (NSA) to protect national security systems (NSS) when transporting classified traffic across an unclassified network.
Use of weak or untested encryption algorithms undermines the purposes of using encryption to protect data. National Institute of Standards and Technology (NIST) cryptographic algorithms are approv...Rule Medium Severity -
SRG-NET-000369
Group -
AOS, in conjunction with a remote device, must prevent the device from simultaneously establishing nonremote connections with the system and communicating via some other connection to resources in external networks.
Split tunneling would in effect allow unauthorized external connections, making the system more vulnerable to attack and to exfiltration of organizational information. This requirement applies to ...Rule Medium Severity -
SRG-NET-000070
Group -
When AOS is used as a wireless local area network (WLAN) controller, WLAN Extensible Authentication Protocol-Transport Layer Security (EAP-TLS) implementation must use certificate-based public key infrastructure (PKI) authentication to connect to DOD networks.
DOD certificate-based PKI authentication is strong, two-factor authentication that relies on carefully evaluated cryptographic modules. Implementations of EAP-TLS that are not integrated with certi...Rule Medium Severity
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