Trellix Application Control 8.x Security Technical Implementation Guide

Overview

VersionDateFinding Count (31)Downloads
32025-06-09CAT I (High): 2CAT II (Medium): 29CAT III (Low): 0
STIG Description
This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DOD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: disa.stig_spt@mail.mil.
ClassifiedPublicSensitive
I - Mission Critical ClassifiedI - Mission Critical PublicI - Mission Critical Sensitive
II - Mission Support ClassifiedII - Mission Support PublicII - Mission Support Sensitive
III - Administrative ClassifiedIII - Administrative PublicIII - Administrative Sensitive

Findings - All

Finding IDSeverityTitleDescription
V-213327
LOWMEDIUMHIGH
The Solidcore client Command Line Interface (CLI) must be in lockdown mode.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 t...
V-213328
LOWMEDIUMHIGH
The Solidcore client Command Line Interface (CLI) Access Password must be changed from the default.The Solidcore client can be configured locally at the CLI, but only when accessed with the required password. Since the Trellix Application Control c...
V-213316
LOWMEDIUMHIGH
A Trellix Application Control written policy must be documented to outline the organization-specific variables for application whitelisting.Enabling application whitelisting without adequate design and organization-specific requirements will either result in an implementation which is too ...
V-213317
LOWMEDIUMHIGH
The use of a Solidcore 8.x local Command Line Interface (CLI) Access Password must be documented in the organizations written policy.The Solidcore client can be configured locally at the CLI, but only when accessed with the required password. Since the Trellix Application Control c...
V-213318
LOWMEDIUMHIGH
The Solidcore client Command Line Interface (CLI) Access password complexity requirements must be documented in the organizations written policy.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 sy...
V-213319
LOWMEDIUMHIGH
The Solidcore client Command Line Interface (CLI) Access Password protection process must be documented in the organizations written policy.The Solidcore client can be configured locally at the CLI, but only when accessed with the required password. Since the Trellix Application Control c...
V-213320
LOWMEDIUMHIGH
The requirement for scheduled Solidcore client Command Line Interface (CLI) Access Password changes must be documented in the organizations written policy.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 sy...
V-213321
LOWMEDIUMHIGH
The process by which the Solidcore client Command Line Interface (CLI) Access Password is made available to administrators when needed must be documented in the organizations written policy.The Solidcore client can be configured locally at the CLI, but only when accessed with the required password. Since the Trellix Application Control c...
V-213322
LOWMEDIUMHIGH
The Trellix Application Control Options Advanced Threat Defense (ATD) settings, if being used, must be confined to the organizations enclave.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...
V-213323
LOWMEDIUMHIGH
The configuration of features under Trellix Application Control Options policies Enforce feature control must be documented in the organizations written policy.By default, the Trellix Application Control prevents installation of ActiveX controls on endpoints, enforces memory protection techniques on endpoints...
V-213324
LOWMEDIUMHIGH
The organizations written policy must include a process for how whitelisted applications are deemed to be allowed.Enabling application whitelisting without adequate design and organization-specific requirements will either result in an implementation which is too ...
V-213325
LOWMEDIUMHIGH
The organizations written policy must include procedures for how often the whitelist of allowed applications is reviewed.Enabling application whitelisting without adequate design and organization-specific requirements will either result in an implementation which is too ...
V-213326
LOWMEDIUMHIGH
The Solidcore client must be enabled.The Application Control whitelisting must be enabled on all workstation endpoints. To enable Application Control, the Solidcore client needs to be in ...
V-213329
LOWMEDIUMHIGH
The organization-specific Rules policy must only include executable and dll files that are associated with applications as allowed by the organizations written policy.To ensure Solidcore clients are only configured to STIG and organization-specific settings, organization-specific ePO policies must be applied to all ...
V-213330
LOWMEDIUMHIGH
The Trellix Application Control Options Reputation setting must be configured to use the Trellix Global Threat Intelligence (Trellix GTI) option.If a Threat Intelligence Exchange (TIE) server is being used in the organization, reputation for files and certificates is fetched from the TIE server...
V-213331
LOWMEDIUMHIGH
The Trellix Application Control Options Reputation-Based Execution settings, if enabled, must be configured to allow Most Likely Trusted or Known Trusted only.When a file is executed on an endpoint, the Application Control performs multiple checks to determine whether to allow or ban the execution. Only file...
V-213332
LOWMEDIUMHIGH
The Trellix Application Control Options Advanced Threat Defense (ATD) settings must not be enabled unless an internal ATD is maintained by the organization.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...
V-213333
LOWMEDIUMHIGH
The Trellix Application Control Options Advanced Threat Defense (ATD) settings, if being used, must be configured to send all binaries with a reputation of Might be Trusted and below for analysis.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...
V-213334
LOWMEDIUMHIGH
The Trellix Application Control Options Advanced Threat Defense (ATD) settings, if being used, must be configured to only send binaries with a size of 5MB or less.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 binarie...
V-213336
LOWMEDIUMHIGH
The Trellix Application Control Options policy must be configured to disable Self-Approval.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
LOWMEDIUMHIGH
The Trellix Application Control Options policy End User Notification, if configured by organization, must have all default variables replaced with the organization-specific data.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
LOWMEDIUMHIGH
The Trellix Application Control Options policies Enforce feature control memory protection must be enabled.By default, the Trellix Application Control prevents installation of ActiveX controls on endpoints, enforces memory protection techniques on endpoints...
V-213339
LOWMEDIUMHIGH
Enabled features under Trellix Application Control Options policies Enforce feature control must not be configured unless documented in written policy and approved by ISSO/ISSM.By default, the Trellix Application Control prevents installation of ActiveX controls on endpoints, enforces memory protection techniques on endpoints...
V-213340
LOWMEDIUMHIGH
The Trellix Application Control Options Inventory option must be configured to hide OS Files.By default, the Windows operating system files are excluded from the inventory. By selecting this option, the overwhelming the inventory with legitima...
V-213341
LOWMEDIUMHIGH
The Trellix Application Control Options Inventory interval option must be configured to pull inventory from endpoints on a regular basis not to exceed seven days.When Trellix Application Control is deployed on a system, it creates a whitelist of all executable binaries and scripts present on the system. The whi...
V-213342
LOWMEDIUMHIGH
The Trellix Applications Default Rules policy must be part of the effective rules policy applied to every endpoint.To ensure Solidcore clients are only configured to STIG and organization-specific settings, organization-specific ePO policies must be applied to all ...
V-213343
LOWMEDIUMHIGH
A copy of the Trellix Default Rules policy must be part of the effective rules policy applied to every endpoint.To ensure Solidcore clients are only configured to STIG and organization-specific settings, an organization-specific ePO policies must be applied to a...
V-213344
LOWMEDIUMHIGH
The organization-specific Rules policies must be part of the effective rules policy applied to all endpoints.To ensure Solidcore clients are only configured to STIG and organization-specific settings, an organization-specific ePO policies must be applied to a...
V-213345
LOWMEDIUMHIGH
The organization-specific Solidcore Client Policies must be created and applied to all endpoints.Trellix Application Control is deployed with default policies. To ensure the default policies are not used and that an organization knowingly configur...
V-213346
LOWMEDIUMHIGH
The Throttling settings must be enabled and configured to settings according to organizations requirements.The throttling settings regulate the data flow between the clients and Trellix ePO. The value for each category defines the number of entries that wil...
V-213347
LOWMEDIUMHIGH
The Solidcore Client Exception Rules must be documented in the organizations written policy.When exceptions are created for applications, it results in potential attack vectors. As such, exceptions should only be created with a full approval ...