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Objective ID
Severity
Discussion
V-213316
medium
Enabling application whitelisting without adequate design and organization-specific requirements will either result in an implementation which is too relaxed or an implementation which causes denial of service to its user community. Documenting the specific requirements and trust model before configuring and deploying the Trellix Application Control software is mandatory.
V-213317
medium
The Solidcore client can be configured locally at the CLI, but only when accessed with the required password.
Since the Trellix Application Control configuration is to be managed by ePO policies, allowing enablement of the CLI to would introduce the capability of local configuration changes.
Strict management of the accessibility of the CLI is necessary in order to prevent its misuse.
The misuse of the CLI would open the system up to the possible configuration changes potentially allowing malicious applications to execute unknowingly.
Since the Trellix Application Control configuration is to be managed by ePO policies, allowing enablement of the CLI to would introduce the capability of local configuration changes.
Strict management of the accessibility of the CLI is necessary in order to prevent its misuse.
The misuse of the CLI would open the system up to the possible configuration changes potentially allowing malicious applications to execute unknowingly.
V-213318
medium
The Solidcore client can be configured locally at the CLI, but only when accessed with the required password.
The misuse of the CLI would open the system up to the possible configuration, allowing malicious applications to execute unknowingly. Strict management of the accessibility of the CLI is necessary in order to prevent its misuse.
The misuse of the CLI would open the system up to the possible configuration, allowing malicious applications to execute unknowingly. Strict management of the accessibility of the CLI is necessary in order to prevent its misuse.
V-213319
medium
The Solidcore client can be configured locally at the CLI, but only when accessed with the required password.
Since the Trellix Application Control configuration is to be managed by ePO policies, allowing enablement of the CLI to would introduce the capability of local configuration changes.
Strict management of the accessibility of the CLI is necessary in order to prevent its misuse.
The misuse of the CLI would open the system up to the possible configuration changes potentially allowing malicious applications to execute unknowingly.
Since the Trellix Application Control configuration is to be managed by ePO policies, allowing enablement of the CLI to would introduce the capability of local configuration changes.
Strict management of the accessibility of the CLI is necessary in order to prevent its misuse.
The misuse of the CLI would open the system up to the possible configuration changes potentially allowing malicious applications to execute unknowingly.
V-213320
medium
The Solidcore client can be configured locally at the CLI, but only when accessed with the required password.
The misuse of the CLI would open the system up to the possible configuration, allowing malicious applications to execute unknowingly. Strict management of the accessibility of the CLI is necessary in order to prevent its misuse.
The misuse of the CLI would open the system up to the possible configuration, allowing malicious applications to execute unknowingly. Strict management of the accessibility of the CLI is necessary in order to prevent its misuse.
V-213321
medium
The Solidcore client can be configured locally at the CLI, but only when accessed with the required password.
Since the Trellix Application Control configuration is to be managed by ePO policies, allowing enablement of the CLI to would introduce the capability of local configuration changes.
Strict management of the accessibility of the CLI is necessary in order to prevent its misuse.
The misuse of the CLI would open the system up to the possible configuration changes potentially allowing malicious applications to execute unknowingly.
Since the Trellix Application Control configuration is to be managed by ePO policies, allowing enablement of the CLI to would introduce the capability of local configuration changes.
Strict management of the accessibility of the CLI is necessary in order to prevent its misuse.
The misuse of the CLI would open the system up to the possible configuration changes potentially allowing malicious applications to execute unknowingly.
V-213322
medium
Data will be leaving the endpoint to be analyzed by the ATD. Because data could feasibly be intercepted en route, risk of outside threats is minimized by ensuring the ATD is in the same enclave as the endpoints.
V-213323
medium
By default, the Trellix Application Control prevents installation of ActiveX controls on endpoints, enforces memory protection techniques on endpoints, and prevents MSI-installers from running on endpoints. The Feature Control allows for those safeguards to be bypassed and in doing so renders the Trellix Application Control less effective.
V-213324
medium
Enabling application whitelisting without adequate design and organization-specific requirements will either result in an implementation which is too relaxed or an implementation which causes denial of service to its user community. Documenting the specific requirements and trust model before configuring and deploying the Trellix Application Control software is mandatory.
V-213325
medium
Enabling application whitelisting without adequate design and organization-specific requirements will either result in an implementation which is too relaxed or an implementation which causes denial of service to its user community. Documenting the specific requirements and trust model before configuring and deploying the Trellix Application Control software is mandatory.
V-213326
medium
The Application Control whitelisting must be enabled on all workstation endpoints. To enable Application Control, the Solidcore client needs to be in enabled mode.
V-213327
high
By default, when an endpoint's Solidcore installation is managed by the ePO server, the CLI will automatically be in lockdown mode. This will ensure the endpoint receives all of its Solidcore configuration settings from the ePO server. The CLI can, however, be activated for troubleshooting efforts during which time the ePO settings will not be enforced. Leaving the CLI in an allowed status will prevent the endpoint from receiving changes from the ePO server for the Solidcore client.
V-213328
high
The Solidcore client can be configured locally at the CLI, but only when accessed with the required password.
Since the Trellix Application Control configuration is to be managed by ePO policies, allowing enablement of the CLI to would introduce the capability of local configuration changes.
Strict management of the accessibility of the CLI is necessary in order to prevent its misuse.
The misuse of the CLI would open the system up to the possible configuration changes potentially allowing malicious applications to execute unknowingly.
Since the Trellix Application Control configuration is to be managed by ePO policies, allowing enablement of the CLI to would introduce the capability of local configuration changes.
Strict management of the accessibility of the CLI is necessary in order to prevent its misuse.
The misuse of the CLI would open the system up to the possible configuration changes potentially allowing malicious applications to execute unknowingly.
V-213329
medium
To ensure Solidcore clients are only configured to STIG and organization-specific settings, organization-specific ePO policies must be applied to all organization workstation endpoints.
The Trellix Application Control installs with two Default Rules policies.
The Trellix Default Rules policy includes the whitelist for commonly used applications to the platform.
The Trellix Applications Default Rules policy include the whitelist for Trellix applications.
Both of these policies are at the "My Organization" level of the System Tree and must be inherited by all branches of the System Tree.
Organization-specific applications would be whitelisted with an organization-specific policy combined with the two Default policies into one effective policy.
The Trellix Application Control installs with two Default Rules policies.
The Trellix Default Rules policy includes the whitelist for commonly used applications to the platform.
The Trellix Applications Default Rules policy include the whitelist for Trellix applications.
Both of these policies are at the "My Organization" level of the System Tree and must be inherited by all branches of the System Tree.
Organization-specific applications would be whitelisted with an organization-specific policy combined with the two Default policies into one effective policy.
V-213330
medium
If a Threat Intelligence Exchange (TIE) server is being used in the organization, reputation for files and certificates is fetched from the TIE server. The reputation values control execution at endpoints and are displayed on the Application Control pages on the Trellix ePO console.
If the GTI is being used, reputation for files and certificates is fetched from the Trellix GTI.
For both methods, the administrator can review the reputation values and make informed decisions for inventory items in the enterprise.
If the GTI is being used, reputation for files and certificates is fetched from the Trellix GTI.
For both methods, the administrator can review the reputation values and make informed decisions for inventory items in the enterprise.
V-213331
medium
When a file is executed on an endpoint, the Application Control performs multiple checks to determine whether to allow or ban the execution. Only files with a reputation of "Most Likely Trusted", "Known Trusted" or "Might be Trusted" are considered to be allowed. By configuring the setting to only "Most Likely Trusted" or "Known Trusted", the files with a reputation of "Might be Trusted" are blocked. While this may impact operationally in the beginning, after the inventories are vetted by the administrators, files with a "Might be Trusted" value may be recategorized in that organization.
V-213332
medium
This option will automatically send files with a specific file reputation to ATD for further analysis. This option is not selected by default and must only be selected if an ATD is being used.
V-213333
medium
When the file reputation of "Might be Trusted" is configured for being forwarded to ATD, all files with the reputation of "Might be Trusted", "Unknown", "Might be Malicious", "Most Likely Malicious" and "Known Malicious" are forwarded to the ATD.
The files with "Might be Trusted" reputation may be redesignated as "Trusted" after analysis.
The files with "Might be Trusted" reputation may be redesignated as "Trusted" after analysis.
V-213334
medium
Since binaries can be large, the file size must be limited to avoid congestion on the network and degradation on the endpoint when sending the binaries to the ATD.
V-213336
medium
The Trellix Application Control Self-Approval feature allows the user to take an action when a user tries to run a new or unknown application.
V-213337
medium
The "User Message" option will show a dialog box when an event is detected and display the organization-specified text in the message.
V-213338
medium
By default, the Trellix Application Control prevents installation of ActiveX controls on endpoints, enforces memory protection techniques on endpoints, and prevents MSI-installers from running on endpoints. The Feature Control allows for those safeguards to be bypassed and in doing so renders the Trellix Application Control less effective.
Because ENS and HIPs have many more types of memory protection techniques than Trellix Application Control, memory protection must be explicitly disabled.
Because ENS and HIPs have many more types of memory protection techniques than Trellix Application Control, memory protection must be explicitly disabled.
V-213339
medium
By default, the Trellix Application Control prevents installation of ActiveX controls on endpoints, enforces memory protection techniques on endpoints, and prevents MSI-installers from running on endpoints. The "Feature Control" allows for those safeguards to be bypassed and in doing so renders the Trellix Application Control less effective.
V-213340
medium
By default, the Windows operating system files are excluded from the inventory. By selecting this option, the overwhelming the inventory with legitimate Windows Files in the <system drive>\Windows folder which are signed by the Microsoft certificate and all files in the <system drive>\Windows\winsxs folder will not be included in the inventory.
V-213341
medium
When Trellix Application Control is deployed on a system, it creates a whitelist of all executable binaries and scripts present on the system. The whitelist contains all authorized files, and only files that are present in the whitelist are allowed to execute. An executable binary, script, or process that is not in the whitelist is said to be unauthorized and is prevented from running. Trellix Application Control uses a centralized repository of trusted applications and dynamic whitelisting to reduce manual maintenance effort.
Running frequent Pull Inventory tasks ensures inventory information does not become stale. There must be the minimum interval between consecutive inventory pull runs (when the inventory information is fetched from the endpoints). By default, this value is seven days and is the recommended setting. Pulling at an interval of greater than seven days will allow for the inventory of endpoints to become stale.
Running frequent Pull Inventory tasks ensures inventory information does not become stale. There must be the minimum interval between consecutive inventory pull runs (when the inventory information is fetched from the endpoints). By default, this value is seven days and is the recommended setting. Pulling at an interval of greater than seven days will allow for the inventory of endpoints to become stale.
V-213342
medium
To ensure Solidcore clients are only configured to STIG and organization-specific settings, organization-specific ePO policies must be applied to all organization workstation endpoints.
The Trellix Application Control installs with two Default Rules policies.
The Trellix Default Rules policy includes the whitelist for commonly used applications to the platform.
The Trellix Applications Default Rules policy include the whitelist for Trellix applications.
Both of these policies are at the "My Organization" level of the System Tree and must be inherited by all branches of the System Tree.
Organization-specific applications would be whitelisted with an organization-specific policy combined with the two Default policies into one effective policy.
The Trellix Application Control installs with two Default Rules policies.
The Trellix Default Rules policy includes the whitelist for commonly used applications to the platform.
The Trellix Applications Default Rules policy include the whitelist for Trellix applications.
Both of these policies are at the "My Organization" level of the System Tree and must be inherited by all branches of the System Tree.
Organization-specific applications would be whitelisted with an organization-specific policy combined with the two Default policies into one effective policy.
V-213343
medium
To ensure Solidcore clients are only configured to STIG and organization-specific settings, an organization-specific ePO policies must be applied to all organization workstation endpoints.
The Trellix Application Control installs with two Default Rules policies.
The Trellix Default Rules policy includes the whitelist for commonly used applications to the platform.
The Trellix Applications Default Rules policy include the whitelist for Trellix applications.
Both of these policies are at the My Organization level of the System Tree and must be inherited by all branches of the System Tree.
Organization-specific applications would be whitelisted with an organization-specific policy combined with the two Default policies into one effective policy.
The Trellix Application Control installs with two Default Rules policies.
The Trellix Default Rules policy includes the whitelist for commonly used applications to the platform.
The Trellix Applications Default Rules policy include the whitelist for Trellix applications.
Both of these policies are at the My Organization level of the System Tree and must be inherited by all branches of the System Tree.
Organization-specific applications would be whitelisted with an organization-specific policy combined with the two Default policies into one effective policy.
V-213344
medium
To ensure Solidcore clients are only configured to STIG and organization-specific settings, an organization-specific ePO policies must be applied to all organization workstation endpoints.
The Trellix Application Control installs with two Default Rules policies.
The Trellix Default Rules policy includes the whitelist for commonly used applications to the platform.
The Trellix Applications Default Rules policy include the whitelist for Trellix applications.
Both of these policies are at the "My Organization" level of the System Tree and must be inherited by all branches of the System Tree.
Organization-specific applications would be whitelisted with an organization-specific policy combined with the two Default policies into one effective policy.
The Trellix Application Control installs with two Default Rules policies.
The Trellix Default Rules policy includes the whitelist for commonly used applications to the platform.
The Trellix Applications Default Rules policy include the whitelist for Trellix applications.
Both of these policies are at the "My Organization" level of the System Tree and must be inherited by all branches of the System Tree.
Organization-specific applications would be whitelisted with an organization-specific policy combined with the two Default policies into one effective policy.
V-213345
medium
Trellix Application Control is deployed with default policies. To ensure the default policies are not used and that an organization knowingly configures their systems to their own configuration requirements, organization-specific policies will need to be created.
V-213346
medium
The throttling settings regulate the data flow between the clients and Trellix ePO. The value for each category defines the number of entries that will be sent to the Trellix ePO daily. Clients start caching for the defined category when the specified threshold value is reached. After the cache is full, new data for that category is dropped and not sent to the Trellix ePO. As such, settings must be high enough to allow for all data to reach the Trellix ePO.
V-213347
medium
When exceptions are created for applications, it results in potential attack vectors. As such, exceptions should only be created with a full approval by the local ISSO/ISSM. The organization's entire written policy requires approval by the ISSO/ISSM/AO and is required to be under CAB/CCB oversight.