II - Mission Support Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-NET-000061-ALG-000009
Group -
The F5 BIG-IP appliance providing intermediary services for remote access communications traffic must ensure inbound and outbound traffic is monitored for compliance with remote access security policies.
Automated monitoring of remote access traffic allows organizations to detect cyberattacks and also ensure ongoing compliance with remote access policies by inspecting connection activities of remot...Rule Medium Severity -
SRG-NET-000062-ALG-000011
Group -
The F5 BIG-IP appliance providing intermediary services for remote access must use FIPS-validated cryptographic algorithms, including TLS 1.2 at a minimum.
Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. Remote access is access to DOD nonpublic information s...Rule High Severity -
SRG-NET-000318-ALG-000014
Group -
To protect against data mining, the F5 BIG-IP appliance providing content filtering must prevent code injection attacks from being launched against data storage objects, including, at a minimum, databases, database records, queries, and fields.
Data mining is the analysis of large quantities of data to discover patterns and is used in intelligence gathering. Failure to prevent attacks launched against organizational information from unaut...Rule Medium Severity -
SRG-NET-000318-ALG-000151
Group -
To protect against data mining, the F5 BIG-IP appliance providing content filtering must prevent code injection attacks launched against application objects including, at a minimum, application URLs and application code.
Data mining is the analysis of large quantities of data to discover patterns and is used in intelligence gathering. Failure to prevent attacks launched against organizational information from unaut...Rule Medium Severity -
SRG-NET-000318-ALG-000152
Group -
To protect against data mining, the F5 BIG-IP appliance providing content filtering must prevent SQL injection attacks launched against data storage objects, including, at a minimum, databases, database records, and database fields.
Data mining is the analysis of large quantities of data to discover patterns and is used in intelligence gathering. Failure to prevent attacks launched against organizational information from unaut...Rule Medium Severity -
SRG-NET-000015-ALG-000016
Group -
The F5 BIG-IP appliance providing user access control intermediary services must enforce approved authorizations for logical access to information and system resources by employing identity-based, role-based, and/or attribute-based security policies.
Successful authentication must not automatically give an entity access to an asset or security boundary. The lack of authorization-based access control could result in the immediate compromise of a...Rule High Severity -
SRG-NET-000018-ALG-000017
Group -
The F5 BIG-IP appliance providing user access control intermediary services must implement attribute- and content-based inspection of the source, destination, headers, and/or content of the communications traffic.
Information flow control regulates where information is allowed to travel within a network. The flow of all network traffic must be monitored and controlled so it does not introduce any unacceptabl...Rule High Severity -
SRG-NET-000041-ALG-000022
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 the network.
Display of a standardized and approved use notification before granting access to the network ensures privacy and security notification verbiage used is consistent with applicable federal laws, Exe...Rule Medium Severity -
SRG-NET-000492-ALG-000027
Group -
The F5 BIG-IP appliance must generate event log records that can be forwarded to the centralized events log.
Without generating audit records that log usage of objects by subjects and other objects, it would be difficult to establish, correlate, and investigate the events relating to an incident, or ident...Rule Medium Severity -
SRG-NET-000512-ALG-000064
Group -
The F5 BIG-IP appliance that provides intermediary services for SMTP must inspect inbound and outbound SMTP and Extended SMTP communications traffic for protocol compliance and protocol anomalies.
Application protocol anomaly detection examines application layer protocols such as SMTP to identify attacks based on observed deviations in the normal RFC behavior of a protocol or service. This t...Rule Medium Severity -
SRG-NET-000512-ALG-000065
Group -
The F5 BIG-IP appliance that intermediary services for FTP must inspect inbound and outbound FTP communications traffic for protocol compliance and protocol anomalies.
Application protocol anomaly detection examines application layer protocols such as FTP to identify attacks based on observed deviations in the normal RFC behavior of a protocol or service. This ty...Rule Medium Severity -
SRG-NET-000512-ALG-000066
Group -
The F5 BIG-IP appliance that provides intermediary services for HTTP must inspect inbound and outbound HTTP traffic for protocol compliance and protocol anomalies.
Application protocol anomaly detection examines application layer protocols such as HTTP to identify attacks based on observed deviations in the normal RFC behavior of a protocol or service. This t...Rule Medium Severity -
SRG-NET-000132-ALG-000087
Group -
The F5 BIG-IP appliance must be configured to prohibit or restrict the use of unnecessary or prohibited functions, ports, protocols, and/or services, including those defined in the PPSM CAL and vulnerability assessments.
To prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restr...Rule High Severity -
F5BI-AP-300046
Group -
The F5 BIG-IP appliance providing user authentication intermediary services must require users to reauthenticate when the user's role or information authorizations is changed.
Without reauthentication, users may access resources or perform tasks for which they do not have authorization. In addition to the reauthentication requirements associated with session locks, orga...Rule Medium Severity -
SRG-NET-000138-ALG-000063
Group -
The F5 BIG-IP appliance providing user authentication intermediary services must uniquely identify and authenticate users using redundant authentication servers and multifactor authentication (MFA).
To ensure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to prevent potential misuse and compromise of the system. Organizational user...Rule High Severity -
SRG-NET-000164-ALG-000100
Group -
The F5 BIG-IP appliance must configure certification path validation to ensure revoked machine credentials are prohibited from establishing an allowed session.
A certificate's certification path is the path from the end entity certificate to a trusted root certification authority (CA). Certification path validation is necessary for a relying party to make...Rule High Severity -
SRG-NET-000345-ALG-000099
Group -
The F5 BIG-IP appliance providing user authentication intermediary services using PKI-based user authentication must implement a local cache of revocation data to support path discovery and validation in case of the inability to access revocation information via the network.
Without configuring a local cache of revocation data, there is the potential to allow access to users who are no longer authorized (users with revoked certificates). The intent of this requirement...Rule Medium Severity -
SRG-NET-000213-ALG-000107
Group -
The F5 BIG-IP appliance must terminate all network connections associated with a communications session at the end of the session or after 15 minutes of inactivity.
Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port th...Rule High Severity -
SRG-NET-000362-ALG-000112
Group -
The F5 BIG-IP appliance providing content filtering must employ rate-based attack prevention behavior analysis.
If the network does not provide safeguards against denial-of-service (DoS) attacks, network resources will be unavailable to users. Installation of content filtering gateways and application layer...Rule Medium Severity -
SRG-NET-000362-ALG-000155
Group -
The F5 BIG-IP appliance providing content filtering must protect against or limit the effects of known and unknown types of denial-of-service (DoS) attacks by employing pattern recognition pre-processors.
If the network does not provide safeguards against DoS attacks, network resources will be unavailable to users. Installation of content filtering gateways and application layer firewalls at key bo...Rule Medium Severity -
SRG-NET-000401-ALG-000127
Group -
The F5 BIG-IP appliance must check the validity of all data inputs except those specifically identified by the organization.
Invalid user input occurs when a user inserts data or characters into an application's data entry fields and the application is unprepared to process that data. This results in unanticipated applic...Rule Medium Severity -
SRG-NET-000251-ALG-000131
Group -
The F5 BIG-IP appliance providing content filtering must automatically update malicious code protection mechanisms.
The malicious software detection functionality on network elements needs to be constantly updated to identify new threats as they are discovered. All malicious software detection functions must co...Rule Medium Severity -
SRG-NET-000384-ALG-000136
Group -
The F5 BIG-IP appliance providing content filtering must detect use of network services that have not been authorized or approved by the information system security manager (ISSM) and information system security officer (ISSO), at a minimum.
Unauthorized or unapproved network services lack organizational verification or validation, and therefore may be unreliable or serve as malicious rogues for valid services. Examples of network ser...Rule Medium Severity -
SRG-NET-000385-ALG-000137
Group -
The F5 BIG-IP appliance providing content filtering must generate a log record when unauthorized network services are detected.
Unauthorized or unapproved network services lack organizational verification or validation, and therefore may be unreliable or serve as malicious rogues for valid services. Examples of network ser...Rule Medium Severity -
SRG-NET-000233-ALG-000115
Group -
When the Access Profile Type is LTM+APM and it is not using any connectivity resources (such as Network Access, Portal Access, etc.) in the VPE, the F5 BIG-IP appliance must be configured to enable the HTTP Only flag.
To guard against cookie hijacking, only the BIG-IP APM controller and client must be able to view the full session ID. Setting the APM HTTP Only flag ensures that a third party will not have access...Rule Low Severity
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