I - Mission Critical Classified
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000357-NDM-000293
Group -
The Cisco ASA 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 ASA must be configured to generate an immediate real-time alert of all audit failure events requiring real-time alerts.
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 -
The Cisco ASA must be configured to synchronize its clock with the primary and secondary time sources using redundant authoritative time sources.
The loss of connectivity to a particular authoritative time source will result in the loss of time synchronization (free-run mode) and increasingly inaccurate time stamps on audit events and other ...Rule Medium Severity -
SRG-APP-000375-NDM-000300
Group -
The Cisco ASA must be configured to record time stamps for audit records that meet a granularity of one second for a minimum degree of precision.
Without sufficient granularity of time stamps, it is not possible to adequately determine the chronological order of records. Time stamps generated by the application include date and time. Granula...Rule Medium Severity -
SRG-APP-000395-NDM-000310
Group -
The Cisco ASA must be configured to authenticate Simple Network Management Protocol (SNMP) messages using a FIPS-validated Keyed-Hash Message Authentication Code (HMAC).
Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Bidirectional authentication provides stronger safeguards to validate the...Rule Medium Severity -
SRG-APP-000395-NDM-000310
Group -
The Cisco ASA must be configured to encrypt Simple Network Management Protocol (SNMP) messages using a FIPS 140-2 approved algorithm.
Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Bidirectional authentication provides stronger safeguards to validate the...Rule Medium Severity -
SRG-APP-000395-NDM-000347
Group -
The Cisco ASA must be configured to authenticate Network Time Protocol 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 ASA must be configured to use FIPS-validated Keyed-Hash Message Authentication Code (HMAC) to protect the integrity of non-local maintenance and diagnostic communications.
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 ASA must be configured to implement cryptographic mechanisms using a FIPS 140-2 approved algorithm 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 -
The Cisco ASA must be configured to protect against known types of denial-of-service (DoS) attacks by enabling the Threat Detection feature.
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-000495-NDM-000318
Group -
The Cisco ASA must be configured to generate audit records when successful/unsuccessful attempts to modify administrator privileges 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 -
SRG-APP-000499-NDM-000319
Group -
The Cisco ASA must be configured to generate audit records when successful/unsuccessful attempts to delete administrator privileges 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 -
SRG-APP-000503-NDM-000320
Group -
The Cisco ASA 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 -
SRG-APP-000504-NDM-000321
Group -
The Cisco ASA must be configured to generate audit records for privileged activities or other system-level access.
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-000505-NDM-000322
Group -
The Cisco ASA must be configured to 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 -
SRG-APP-000506-NDM-000323
Group -
The Cisco ASA must be configured to generate audit records when concurrent logons from different workstations 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 -
SRG-APP-000516-NDM-000336
Group -
The Cisco ASA must be configured to use at least two authentication servers to authenticate users prior to granting administrative access.
Centralized management of authentication settings increases the security of remote and non-local access methods. This control is particularly important protection against the insider threat. With r...Rule High Severity -
SRG-APP-000516-NDM-000340
Group -
The Cisco ASA must be configured to conduct backups of system-level information contained in the information system when changes occur.
System-level information includes default and customized settings and security attributes, including ACLs that relate to the network device configuration, as well as software required for the execu...Rule Medium Severity -
SRG-APP-000516-NDM-000344
Group -
The Cisco ASA must be configured to obtain its public key certificates from an appropriate certificate policy through an approved service provider.
For user certificates, each organization obtains certificates from an approved, shared service provider, as required by OMB policy. For federal agencies operating a legacy public key infrastructure...Rule Medium Severity -
SRG-APP-000516-NDM-000350
Group -
The Cisco ASA must be configured to send log data to at least two central log servers for the purpose of forwarding alerts to organization-defined personnel and/or the firewall administrator.
The aggregation of log data kept on a syslog server can be used to detect attacks and trigger an alert to the appropriate security personnel. The stored log data can used to detect weaknesses in se...Rule High Severity -
SRG-APP-000516-NDM-000351
Group -
The Cisco ASA must be running an operating system release that is currently supported by Cisco Systems.
Network devices running an unsupported operating system lack current security fixes required to mitigate the risks associated with recent vulnerabilities.Rule High Severity -
SRG-APP-000001-NDM-000200
Group -
The Cisco ASA 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
Node 2
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