CVE-2020-8126 Explained : Impact and Mitigation
Learn about CVE-2020-8126, a privilege escalation flaw in EdgeSwitch allowing operators to gain administrator access. Find mitigation steps and preventive measures here.
A privilege escalation vulnerability in EdgeSwitch version 1.7.0 allows an operator user to escalate privileges and become an administrator.
Understanding CVE-2020-8126
What is CVE-2020-8126?
This CVE refers to a privilege escalation issue in EdgeSwitch before version 1.7.1, where a CGI script fails to properly sanitize user input, leading to the execution of local commands.
The Impact of CVE-2020-8126
The vulnerability enables an operator user with Privilege-1 to elevate privileges and gain administrator access (Privilege-15).
Technical Details of CVE-2020-8126
Vulnerability Description
The flaw in EdgeSwitch allows an operator user to execute local commands, leading to privilege escalation.
Affected Systems and Versions
- Product: EdgeSwitch
- Version: 1.7.0
Exploitation Mechanism
The vulnerability arises from inadequate input sanitization in a CGI script, enabling malicious users to execute arbitrary commands.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade EdgeSwitch to version 1.7.1 or later to mitigate the vulnerability.
- Monitor system logs for any unusual activities indicating privilege escalation attempts.
Long-Term Security Practices
- Implement the principle of least privilege to restrict user access rights.
- Regularly update and patch software to address security vulnerabilities.
Patching and Updates
Apply security patches and updates provided by the vendor to ensure the system is protected against known vulnerabilities.