CVE-2021-42104 : Exploit Details and Defense Strategies
Learn about CVE-2021-42104 affecting Trend Micro Apex One, Worry-Free Business Security, and the need for immediate mitigation strategies. Find out how to prevent local privilege escalation.
Trend Micro Apex One, Apex One as a Service, and Worry-Free Business Security are affected by an unnecessary privilege vulnerability that could lead to local privilege escalation.
Understanding CVE-2021-42104
Unnecessary privileges in certain Trend Micro products present a security risk with potential privilege escalation threats.
What is CVE-2021-42104?
The vulnerability in Trend Micro products could allow a local attacker to elevate privileges on affected systems by exploiting unnecessary privileges.
The Impact of CVE-2021-42104
- Local attackers can escalate privileges on compromised installations
- Requires initial ability to run low-privileged code on the target system
- Similar to but distinct from CVE-2021-42105, 42106, and 42107
Technical Details of CVE-2021-42104
An overview of the technical aspects of the vulnerability in Trend Micro products.
Vulnerability Description
- Unnecessary privilege vulnerability in Trend Micro Apex One, Apex One as a Service, Worry-Free Business Security 10.0 SP1, and Worry-Free Business Security Services
- Allows local attackers to escalate privileges
- Requires the ability to execute low-privileged code on the system
Affected Systems and Versions
- Trend Micro Apex One 2019, SaaS
- Trend Micro Worry-Free Business Security 10.0 SP1, Services (SaaS)
Exploitation Mechanism
- Attackers exploit the unnecessary privilege vulnerability to gain elevated privileges
Mitigation and Prevention
Steps to mitigate the risks associated with CVE-2021-42104.
Immediate Steps to Take
- Apply security patches provided by Trend Micro promptly
- Monitor for any suspicious activities on the network
Long-Term Security Practices
- Implement the principle of least privilege to limit unnecessary access
- Regularly update and patch all software and systems to prevent vulnerabilities
Patching and Updates
- Trend Micro may release patches addressing the unnecessary privilege vulnerability
- Keep all Trend Micro products updated with the latest security releases