Vulnerabilities

A vulnerability identified in the HX Agent driver file fekern.sys allowed a threat actor with local user access the ability to gain elevated system privileges. Utilization of a Bring Your Own Vulnerable Driver (BYOVD) was leveraged to gain access to the critical Windows process memory lsass.exe (Local Security Authority Subsystem Service). The fekern.sys is a driver file associated with the HX Agent (used in all existing HX Agent versions). The vulnerable driver installed in a product or a system running a fully functional HX Agent is, itself, not exploitable as the product’s tamper protection restricts the ability to communicate with the driver to only the Agent’s processes.

A path or symbolic link manipulation vulnerability in SIR 1.0.3 and prior versions allows an authenticated non-admin local user to overwrite system files with SIR backup files, which can potentially cause a system crash. This was achieved by adding a malicious entry to the registry under the Trellix SIR registry folder or via policy or with a junction symbolic link to files that the user would not normally have permission to acces

A vulnerability in ESM 11.6.10 allows unauthenticated access to the internal Snowservice API and enables remote code execution through command injection, executed as the root user.

This vulnerability allows unauthenticated remote attackers to bypass authentication and gain APIs access of the Manager.

An Cross site scripting vulnerability in the EDR XConsole before this release allowed an attacker to potentially leverage an XSS/HTML-Injection using command line variables. A malicious threat actor could execute commands on the victim's browser for sending carefully crafted malicious links to the EDR XConsole end user.

A cross-site scripting vulnerability in Trellix Central Management (CM) prior to 9.1.3.97129 allows a remote authenticated attacker to craft CM dashboard internal requests causing arbitrary content to be injected into the response when accessing the CM dashboard.

A content-security-policy vulnerability in ENS Control browser extension prior to 10.7.0 Update 15 allows a remote attacker to alter the response header parameter setting to switch the content security policy into report-only mode, allowing an attacker to bypass the content-security-policy configuration.

A buffer overflow vulnerability in TA for Linux and TA for MacOS prior to 5.8.1 allows a local user to gain elevated permissions, or cause a Denial of Service (DoS), through exploiting a memory corruption issue in the TA service, which runs as root. This may also result in the disabling of event reporting to ePO, caused by failure to validate input from the file correctly.

A symbolic link manipulation vulnerability in Trellix Anti-Malware Engine prior to the January 2024 release allows an authenticated local user to potentially gain an escalation of privileges. This was achieved by adding an entry to the registry under the Trellix ENS registry folder with a symbolic link to files that the user wouldn't normally have permission to. After a scan, the Engine would follow the links and remove the files

An Improper Neutralization of Special Elements used in a command vulnerability in ESM prior to version 11.6.9 allows a remote administrator to execute arbitrary code as root on the ESM. This is possible as the input isn't correctly sanitized when adding a new data source.

A server-side request forgery vulnerability in ESM prior to version 11.6.8 allows a low privileged authenticated user to upload arbitrary content, potentially altering configuration. This is possible through the certificate validation functionality where the API accepts uploaded content and doesn't parse for invalid data

An improper limitation of a path name to a restricted directory (path traversal) vulnerability in the TACC ePO extension, for on-premises ePO servers, prior to version 8.4.0 could lead to an authorised administrator attacker executing arbitrary code through uploading a specially crafted GTI reputation file. The attacker would need the appropriate privileges to access the relevant section of the User Interface. The import logic has been updated to restrict file types and content.

An Improper Privilege Management vulnerability in Trellix GetSusp prior to version 5.0.0.27 allows a local, low privilege attacker to gain access to files that usually require a higher privilege level. This is caused by GetSusp not correctly protecting a directory that it creates during execution, allowing an attacker to take over file handles used by GetSusp. As this runs with high privileges, the attacker gains elevated permissions. The file handles are opened as read-only.

A code injection vulnerability in Trellix ENS 10.7.0 April 2023 release and earlier, allowed a local user to disable the ENS AMSI component via environment variables, leading to denial of service and or the execution of arbitrary code.

A Privilege escalation vulnerability exists in Trellix Windows DLP endpoint for windows which can be abused to delete any file/folder for which the user does not have permission to.

A vulnerability arises out of a failure to comprehensively sanitize the processing of a zip file(s). Incomplete neutralization of external commands used to control the process execution of the .zip application allows an authorized user to obtain control of the .zip application to execute arbitrary commands or obtain elevation of system privileges.

An unquoted Windows search path vulnerability existed in the install the MOVE 4.10.x and earlier Windows install service (mvagtsce.exe). The misconfiguration allowed an unauthorized local user to insert arbitrary code into the unquoted service path to obtain privilege escalation and stop antimalware services.

A heap-based overflow vulnerability in TA prior to version 5.7.9 allows a remote user to alter the page heap in the macmnsvc process memory block, resulting in the service becoming unavailable.

A vulnerability exists in Trellix Agent for Windows version 5.7.8 and earlier, that allows local users, during install/upgrade workflow, to replace one of the Agent’s executables before it can be executed. This allows the user to elevate their permissions.

A command injection vulnerability in Trellix Intelligent Sandbox CLI for version 5.2 and earlier, allows a local user to inject and execute arbitrary operating system commands using specially crafted strings. This vulnerability is due to insufficient validation of arguments that are passed to specific CLI command. The vulnerability allows the attack

The protection bypass vulnerability in DLP for Windows 11.9.x is addressed in version 11.10.0. This allowed a local user to bypass DLP controls when uploading sensitive data from a mapped drive into a web email client. Loading from a local driver was correctly prevented. Versions prior to 11.9 correctly detected and blocked the attempted upload of sensitive data.

A cross-site scripting vulnerability in Skyhigh SWG in main releases 11.x prior to 11.2.6, 10.x prior to 10.2.17, and controlled release 12.x prior to 12.0.1 allows a remote attacker to craft SWG-specific internal requests with URL paths to any third-party website, causing arbitrary content to be injected into the response when accessed through SWG.

Improper preservation of permissions vulnerability in Trellix Endpoint Agent (xAgent) prior to V35.31.22 on Windows allows a local user with administrator privileges to bypass the product protection to uninstall the agent via incorrectly applied permissions in the removal protection functionality.

An uncontrolled search path vulnerability exists in Trellix Agent (TA) for Windows in versions prior to 5.7.8. This allows an attacker with admin access, which is required to place the DLL in the restricted Windows System folder, to elevate their privileges to System by placing a malicious DLL there.

XML External Entity (XXE) vulnerability in Trellix IPS Manager prior to 10.1 M8 allows a remote authenticated administrator to perform XXE attack in the administrator interface part of the interface, which allows a saved XML configuration file to be imported.