I - Mission Critical Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000319-NDM-000283
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to automatically audit account-enabling actions.
<VulnDiscussion>Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of reestab...Rule Medium Severity -
SRG-APP-000329-NDM-000287
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to enforce organization-defined role-based access control policies over defined subjects and objects.
<VulnDiscussion>Organizations can create specific roles based on job functions and the authorizations (i.e., privileges) to perform needed op...Rule Medium Severity -
SRG-APP-000357-NDM-000293
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to allocate audit record storage capacity in accordance with organization-defined audit record storage requirements.
<VulnDiscussion>In order to ensure network devices have a sufficient storage capacity in which to write the audit logs, they need to be able ...Rule Medium Severity -
SRG-APP-000373-NDM-000298
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to synchronize internal information system clocks with the primary and secondary time sources located in different geographic regions using redundant authoritative time sources.
<VulnDiscussion>The loss of connectivity to a particular authoritative time source will result in the loss of time synchronization (free-run ...Rule Medium Severity -
SRG-APP-000380-NDM-000304
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to enforce access restrictions associated with changes to device configuration.
<VulnDiscussion>Failure to provide logical access restrictions associated with changes to device configuration may have significant effects o...Rule Medium Severity -
SRG-APP-000381-NDM-000305
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to audit the enforcement actions used to restrict access associated with changes to the device.
<VulnDiscussion>Without auditing the enforcement of access restrictions against changes to the device configuration, it will be difficult to ...Rule Medium Severity -
SRG-APP-000435-NDM-000315
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to protect against or limit the effects of all known types of Denial of Service (DoS) attacks on the BIG-IP appliance management network by limiting the number of concurrent sessions.
<VulnDiscussion>DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot ac...Rule High Severity -
SRG-APP-000515-NDM-000325
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to off-load audit records onto a different system or media than the system being audited.
<VulnDiscussion>Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common...Rule Medium Severity -
SRG-APP-000516-NDM-000317
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs.
<VulnDiscussion>Configuring the network device to implement organization-wide security implementation guides and security checklists ensures ...Rule Medium Severity -
SRG-APP-000516-NDM-000336
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to employ automated mechanisms to centrally manage authentication settings.
<VulnDiscussion>The use of authentication servers or other centralized management servers for providing centralized authentication services i...Rule Medium Severity -
SRG-APP-000516-NDM-000340
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must create backups of system-level information contained in the information system when changes occur or weekly, whichever is sooner.
<VulnDiscussion>System-level information includes default and customized settings and security attributes, including ACLs that relate to the ...Rule Low Severity -
SRG-APP-000516-NDM-000341
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to create backups of information system documentation, including security-related documentation, when changes occur or weekly, whichever is sooner.
<VulnDiscussion>Information system backup is a critical step in maintaining data assurance and availability. Information system and security-...Rule Medium Severity -
SRG-APP-000516-NDM-000344
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to obtain its public key certificates from an appropriate certificate policy through a DoD-approved service provider.
<VulnDiscussion>For user certificates, each organization obtains certificates from an approved, shared service provider, as required by OMB p...Rule Medium Severity -
SRG-APP-000142-NDM-000245
<GroupDescription></GroupDescription>Group -
The F5 BIG-IP must ensure SSH is disabled for root user logon to prevent remote access using the root account.
<VulnDiscussion>The F5 BIG-IP shell must be locked down to limit the ability to modify the configuration through the shell. Preventing attack...Rule Medium Severity -
SRG-APP-000516-NDM-000317
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must provide automated support for account management functions.
<VulnDiscussion>Account management functions include: assignment of group or role membership; identifying account type; specifying user acces...Rule Medium Severity -
SRG-APP-000516-NDM-000317
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must automatically remove or disable temporary user accounts after 72 hours.
<VulnDiscussion>Temporary accounts are established as part of normal account activation procedures when there is a need for short-term accoun...Rule Medium Severity -
SRG-APP-000516-NDM-000317
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must automatically disable accounts after a 35-day period of account inactivity.
<VulnDiscussion>Since the accounts in the network device are privileged or system-level accounts, account management is vital to the security...Rule Medium Severity -
SRG-APP-000516-NDM-000317
<GroupDescription></GroupDescription>Group -
Upon successful logon, the BIG-IP appliance must be configured to notify the administrator of the date and time of the last logon.
<VulnDiscussion>Administrators need to be aware of activity that occurs regarding their network device management account. Providing administ...Rule Medium Severity -
SRG-APP-000516-NDM-000317
<GroupDescription></GroupDescription>Group -
Upon successful logon, the BIG-IP appliance must be configured to notify the administrator of the number of unsuccessful logon attempts since the last successful logon.
<VulnDiscussion>Administrators need to be aware of activity that occurs regarding their network device management account. Providing administ...Rule Medium Severity -
SRG-APP-000516-NDM-000317
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to alert the ISSO and SA (at a minimum) in the event of an audit processing failure.
<VulnDiscussion>It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required....Rule Low Severity -
SRG-APP-000516-NDM-000317
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to protect audit information from any type of unauthorized read access.
<VulnDiscussion>Audit information includes all information (e.g., audit records, audit settings, and audit reports) needed to successfully au...Rule Medium Severity -
SRG-APP-000516-NDM-000317
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to use NIAP evaluated cryptographic mechanisms to protect the integrity of audit information at rest.
<VulnDiscussion>Audit records may be tampered with. If the integrity of audit data were to become compromised, then forensic analysis and dis...Rule Medium Severity -
SRG-APP-000516-NDM-000317
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to uniquely identify and authenticate organizational administrators (or processes acting on behalf of organizational administrators).
<VulnDiscussion>To assure accountability and prevent unauthenticated access, organizational administrators must be uniquely identified and au...Rule High Severity -
SRG-APP-000516-NDM-000317
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to prohibit password reuse for a minimum of five generations.
<VulnDiscussion>Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute...Rule Medium Severity -
SRG-APP-000516-NDM-000317
<GroupDescription></GroupDescription>Group -
The BIG-IP appliance must be configured to enforce 24 hours/1 day as the minimum password lifetime.
<VulnDiscussion>Enforcing a minimum password lifetime helps prevent repeated password changes to defeat the password reuse or history enforce...Rule Medium Severity
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