CVE-2020-13536 Explained : Impact and Mitigation
Learn about CVE-2020-13536, a critical local privilege elevation vulnerability in Moxa MXView series 3.1.8. Discover its impact, affected systems, exploitation mechanism, and mitigation steps.
An exploitable local privilege elevation vulnerability exists in the file system permissions of Moxa MXView series 3.1.8 installation. This vulnerability allows an attacker to execute arbitrary code or replace binaries, posing a significant threat to system integrity and confidentiality.
Understanding CVE-2020-13536
This CVE identifies a critical security issue in Moxa MXView series 3.1.8 that enables attackers to elevate privileges locally.
What is CVE-2020-13536?
The vulnerability in Moxa MXView series 3.1.8 allows attackers to manipulate file system permissions, potentially leading to unauthorized code execution or binary replacement.
The Impact of CVE-2020-13536
The vulnerability has a CVSS base score of 9.3, indicating a critical severity level. Its impact includes high confidentiality and integrity risks, with a changed scope due to the privilege escalation possibility.
Technical Details of CVE-2020-13536
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
The flaw arises from improper file system permissions in Moxa MXView series 3.1.8, enabling attackers to exploit the system.
Affected Systems and Versions
- Product: Moxa
- Version: Moxa MXView Series 3.1.8
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- Privileges Required: None
- User Interaction: None
- Scope: Changed
- Availability Impact: High
- Confidentiality Impact: High
- Integrity Impact: High
Mitigation and Prevention
Protecting systems from CVE-2020-13536 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches promptly to address the vulnerability.
- Restrict access to vulnerable systems to authorized personnel only.
- Monitor system logs for any suspicious activities.
Long-Term Security Practices
- Implement the principle of least privilege to limit user access rights.
- Conduct regular security audits and penetration testing to identify and mitigate vulnerabilities proactively.
Patching and Updates
Regularly update and patch the Moxa MXView series to ensure that known vulnerabilities are addressed effectively.