III - Administrative Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to enforce a 60-day maximum password lifetime restriction.
Any password, no matter how complex, can eventually be cracked. Therefore, passwords need to be changed at specific intervals. One method of minimizing this risk is to use complex passwords and p...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to automatically remove or disable emergency accounts after 72 hours.
Emergency accounts are administrator accounts that are established in response to crisis situations where the need for rapid account activation is required. Therefore, emergency account activation ...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The application must be configured to reveal error messages only to authorized individuals (ISSO, ISSM, and SA).
Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state. Additionally, sensitive account informatio...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to activate a system alert message, send an alarm, and/or automatically shut down when a component failure is detected.
Predictable failure prevention requires organizational planning to address device failure issues. If components key to maintaining the device's security fail to function, the device could continue ...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to generate alerts that can be forwarded to the administrators and Information System Security Officer (ISSO) when accounts are created.
Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to simply...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to generate alerts that can be forwarded to the administrators and Information System Security Officer (ISSO) when accounts are modified.
Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to simply...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to generate alerts that can be forwarded to the administrators and Information System Security Officer (ISSO) when accounts are disabled.
When application accounts are disabled, administrator accessibility is affected. Accounts are utilized for identifying individual device administrators or for identifying the device processes thems...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to generate alerts that can be forwarded to the administrators and Information System Security Officer (ISSO) when accounts are removed.
When application accounts are removed, administrator accessibility is affected. Accounts are utilized for identifying individual device administrators or for identifying the device processes themse...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to generate an immediate alert for account-enabling actions.
Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to simply...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to transmit access authorization information using approved security safeguards to authorized information systems that enforce access control decisions.
Protecting access authorization information (i.e., access control decisions) ensures that authorization information cannot be altered, spoofed, or otherwise compromised during transmission. In dis...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to automatically lock the account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are exceeded.
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. Limits are imposed by locking the a...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to notify the administrator, upon successful logon (access), of the location of last logon (terminal or IP address) in addition to the date and time of the last logon (access).
Administrators need to be aware of activity that occurs regarding their account. Providing them with information deemed important by the organization may aid in the discovery of unauthorized access...Rule Low Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to generate an immediate alert when allocated audit record storage volume reaches 75% of repository maximum audit record storage capacity.
If security personnel are not notified immediately upon storage volume utilization reaching 75%, they are unable to plan for storage capacity expansion. This could lead to the loss of audit informa...Rule Low Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to implement automated security responses if baseline configurations are changed in an unauthorized manner.
Unauthorized changes to the baseline configuration could make the device vulnerable to various attacks or allow unauthorized access to the device. Changes to device configurations can have unintend...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to dynamically manage user accounts.
Dynamic user account management prevents disruption of operations by minimizing the need for system restarts. Dynamic establishment of new user accounts will occur while the system is operational. ...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to allow the use of a temporary password for system logons with an immediate change to a permanent password.
Without providing this capability, an account may be created without a password. Non-repudiation cannot be guaranteed once an account is created if a user is not forced to change the temporary pass...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to notify the administrator of the number of successful logon attempts occurring during an organization-defined time period.
Administrators need to be aware of activity that occurs regarding their network device management account. Providing administrators with information regarding the date and time of their last succes...Rule Low Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to use automated mechanisms to alert security personnel to threats identified by authoritative sources (e.g., CTOs) and IAW with CJCSM 6510.01B.
By immediately displaying an alarm message, potential security violations can be identified more quickly even when administrators are not logged onto the network device. An example of a mechanism t...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to employ automated mechanisms to centrally apply authentication settings.
The use of authentication servers or other centralized management servers for providing centralized authentication services is required for network device management. Maintaining local administrato...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to employ automated mechanisms to centrally verify authentication settings.
The use of authentication servers or other centralized management servers for providing centralized authentication services is required for network device management. Maintaining local administrato...Rule Medium Severity -
SRG-APP-000516-NDM-000317
Group -
The BIG-IP appliance must be configured to employ automated mechanisms to assist in the tracking of security incidents.
Despite the investment in perimeter defense technologies, enclaves are still faced with detecting, analyzing, and remediating network breaches and exploits that have made it past the network device...Rule Medium Severity -
SRG-APP-000435-NDM-000315
Group -
If the BIG-IP appliance is being used to authenticate users for web applications, the HTTPOnly flag must be set.
The HttpOnly attribute directs browsers to use cookies by way of the HTTP and HTTPS protocols only, ensuring that the cookie is not available by other means, such as JavaScript function calls. This...Rule Low Severity -
SRG-APP-000435-NDM-000315
Group -
The F5 BIG-IP appliance must be configured to restrict a consistent inbound IP for the entire management session.
This security measure helps limit the effects of denial-of-service attacks by employing anti-session hijacking security safeguards. Session hijacking, also called cookie hijacking, is the exploitat...Rule Medium Severity -
SRG-APP-000068-NDM-000215
Group -
The F5 BIG-IP appliance providing user access control intermediary services must display the Standard Mandatory DOD-approved Notice and Consent Banner before granting access to SSH.
Display of the DOD-approved use notification before granting access to the network device ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executi...Rule Medium Severity
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