CVE-2021-45440 : What You Need to Know
Learn about CVE-2021-45440, a local privilege escalation vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1. Find out the impact, affected versions, exploitation mechanism, and mitigation steps.
A vulnerability in Trend Micro Apex One and Trend Micro Worry-Free Business Security 10.0 SP1 could lead to local privilege escalation. An attacker could exploit this to elevate privileges.
Understanding CVE-2021-45440
What is CVE-2021-45440?
This CVE identifies an unnecessary privilege vulnerability in Trend Micro Apex One and Trend Micro Worry-Free Business Security 10.0 SP1 that could allow a local attacker to escalate privileges.
The Impact of CVE-2021-45440
The vulnerability could permit a local attacker to abuse impersonation privilege, thus gaining higher levels of access on affected systems.
Technical Details of CVE-2021-45440
Vulnerability Description
The vulnerability resides in Trend Micro Apex One and Trend Micro Worry-Free Business Security 10.0 SP1 (on-prem versions only), enabling a local attacker to perform privilege escalation.
Affected Systems and Versions
- Trend Micro Apex One 2019
- Trend Micro Worry-Free Business Security 10.0 SP1
Exploitation Mechanism
To exploit, an attacker must first execute low-privileged code on the target system before leveraging the vulnerability.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by Trend Micro promptly.
- Monitor for any unauthorized access or suspicious activities on the network.
- Restrict user permissions to minimize the impact of potential attacks.
Long-Term Security Practices
- Conduct regular security training for employees on recognizing and responding to security threats.
- Implement the principle of least privilege to restrict unnecessary access.
Patching and Updates
- Regularly update Trend Micro Apex One and Trend Micro Worry-Free Business Security to the latest versions to mitigate this vulnerability effectively.