CVE-2021-42011 Explained : Impact and Mitigation
Learn about CVE-2021-42011, an incorrect permission assignment vulnerability in Trend Micro Apex One and Apex One as a Service allowing a local attacker to execute malicious code with escalated privileges.
A vulnerability in Trend Micro Apex One and Apex One as a Service could allow a local attacker to load a DLL with escalated privileges.
Understanding CVE-2021-42011
An incorrect permission assignment vulnerability in Trend Micro Apex One and Apex One as a Service allows for privilege escalation.
What is CVE-2021-42011?
This CVE describes an incorrect permission assignment vulnerability in Trend Micro Apex One and Apex One as a Service, enabling a local attacker to load a DLL with escalated privileges on affected installations.
The Impact of CVE-2021-42011
The vulnerability could allow a local attacker to execute malicious code on the target system with escalated privileges, potentially leading to further compromise of the system.
Technical Details of CVE-2021-42011
The following are technical details of the CVE:
Vulnerability Description
- The vulnerability lies in an incorrect permission assignment in Trend Micro Apex One.
- It allows a local attacker to load a DLL with escalated privileges.
Affected Systems and Versions
- Product: Trend Micro Apex One
- Versions affected: 2019, SaaS
Exploitation Mechanism
- An attacker must first execute low-privileged code on the target system to exploit this vulnerability.
Mitigation and Prevention
Steps to mitigate the CVE:
Immediate Steps to Take
- Apply the latest security patches from Trend Micro.
- Restrict access and implement the principle of least privilege.
Long-Term Security Practices
- Conduct regular security assessments and audits.
- Educate users on identifying and reporting suspicious activities.
Patching and Updates
- Ensure timely installation of security updates and patches provided by Trend Micro.