Security Bulletin - Trellix Agent (TA) for MacOS and Linux Fixes One Vulnerability
(CVE-2024-0213)

Summary  

First Published: January 9, 2024 
Last Modified: January 10, 2024 
   

 
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Article contents:  

• Vulnerability Description 

• Remediation 

• Acknowledgments 

• Frequently Asked Questions (FAQs) 

• Resources 

• Disclaimer 
  

Vulnerability Description 
The TA installer prior to version 5.8.1 creates the /var/McAfee/.msgbus folder and uses this location for socket communication between processes. It's possible to crash TA by creating files in this folder containing specially crafted messages. Incorrect input parsing in TA results in the crash. An attacker would need to login to the system to create the file.    

1. CVE-2024-0213 
        
   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 disabling event reporting to ePO, which is caused by the failure to validate input from the file correctly.   
   

https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-0213   

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-0213 

Remediation 
To remediate this issue:  

• Customers on TA prior to version 5.8.1 should update to TA 5.8.1 

Go to the Product Downloads site and download the applicable product update/hotfix file: 
   

  
Download and Installation Instructions 
For instructions to download product updates and hotfixes, see KB56057 - How to download product updates and documentation. 
Review the Release Notes and the Installation Guide for instructions on how to install these updates. All documentation is available at the Product Docs site. 
 
Acknowledgments  

Trellix/Skyhigh Security credits the Frank Cozijnsen @ KPN REDteam for responsibly reporting these vulnerabilities.  
   

NOTE: Trellix/Skyghigh Security doesn't acknowledge zero-day attackers.  
  

Frequently Asked Questions (FAQs) 

How do I know if my product is vulnerable or not? 

For Endpoint Security (ENS) on Windows: 
Use the following instructions for endpoint or client-based products:  

1. Right-click the Trellix tray shield icon on the Windows taskbar. 
2. Select Endpoint Security. 
3. In the console, select Action Menu. 
4. In the Action Menu, select About. The product version displays. 

For endpoint products and ENS on other platforms: 
Use the following instructions for endpoint or client-based products:  

1. Right-click the Trellix tray shield icon on the Windows taskbar. 
2. Select Open Console. 
3. In the console, select Action Menu. 
4. In the Action Menu, select Product Details. The product version displays. 

For ePO/server products: 
Use the following instructions for server-based products:  

1. Check the version and build of ePO that is installed. For instructions, see KB52634 - How to determine what hotfix is installed for ePO 5.9.x. 
2. Create a query in ePO for the product version of the product installed within your organization. 

For Appliances: 
Use the following instructions for Appliance-based products:  

1. Open the Administrator's User Interface (UI). 
2. Click the About link. The product version displays. 

For DLPe ePO Extension: 
Use the following instructions:  

1. Log on to the ePO server. 
2. Click Menu, Data Protection, DLP Policy. 
3. Inside the DLP console click Help, About. The product version displays. 

What is CVSS? 
CVSS, or Common Vulnerability Scoring System, is the result of the National Infrastructure Advisory Council's effort to standardize a system for assessing vulnerability criticality. This system offers an unbiased criticality score between 0 and 10 that customers can use to judge how critical a vulnerability is and plan accordingly. For more information, visit the CVSS website. 
  
When calculating CVSS scores, we have adopted a philosophy that fosters consistency and repeatability. Our guiding principle for CVSS scoring is to score the exploit under consideration by itself. We consider only the immediate and direct impact of the exploit under consideration. We do not factor into a score any potential follow-on exploits that might be made possible by the successful exploitation of the issue being scored. 
  
What are the CVSS scoring metrics?  

1. CVE-2024-0213: Improper Privilege Management in McAfee Agent for Linux and Mac 
      

Where can I find a list of all Security Bulletins? 
All Security Bulletins are published in the security center. Security Bulletins are retired (removed) once a product is both End of Sale and End of Support (End of Life). 
  
How do I report a product vulnerability to Trellix or Skyhigh Security? 
If you have information about a security issue or vulnerability with a Trellix or Skyhigh Security product, visit the PSIRT website for instructions at KB95563 - Report a vulnerability. 
  
How does Trellix or Skyhigh Security​ respond to this and any other reported security flaws? 
Our key priority is the security of our customers. If a vulnerability is found within any of our software or services, we work closely with the relevant security software development team to ensure the rapid and effective development of a fix and communication plan. 
  
We only publish Security Bulletins if they include something actionable such as a workaround, mitigation, version update, or hotfix. Otherwise, we would simply be informing the hacker community that our products are a target, putting our customers at greater risk. For products that are updated automatically, a non-actionable Security Bulletin might be published to acknowledge the discoverer. 
  
View our PSIRT policy on the Support website at KB95564 - About the Product Security Incident Response Team (PSIRT). 
 
Resources 
To contact Technical Support, log on to the ServicePortal and go to the Create a Service Request page:  

• If you are a registered user, type your User ID and Password, and then click Log In. 

• If you are not a registered user, click Register and complete the required fields. Your password and login instructions will be emailed to you. 

Disclaimer 
The information provided in this Security Bulletin is provided as is without warranty of any kind. Trellix/Skyhigh Security disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Trellix/Skyhigh Security or its suppliers be liable for any damages whatsoever, including direct, indirect, incidental, consequential, loss of business profits, or special damages, even if Trellix/Skyhigh Security or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages, so the preceding limitation may not apply. 
  
Any future product release dates mentioned in this Security Bulletin are intended to outline our general product direction, and they should not be relied on in making a purchasing decision. The product release dates are for information purposes only and may not be incorporated into any contract. The product release dates are not a commitment, promise, or legal obligation to deliver any material, code, or functionality. The development, release, and timing of any features or functionality described for our products remain at our sole discretion and may be changed or canceled at any time.