CVE-2020-12126 Explained : Impact and Mitigation
Learn about CVE-2020-12126, involving authentication bypass flaws in WAVLINK WN530H4 M30H4.V5030.190403 router, enabling unauthorized access and denial of service.
Multiple authentication bypass vulnerabilities in the /cgi-bin/ endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 allow an attacker to leak router settings, change configuration variables, and cause denial of service via an unauthenticated endpoint.
Understanding CVE-2020-12126
This CVE involves multiple authentication bypass vulnerabilities in a specific endpoint of the WAVLINK WN530H4 router, enabling unauthorized access and potential denial of service attacks.
What is CVE-2020-12126?
The CVE-2020-12126 vulnerability pertains to the /cgi-bin/ endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 router, allowing attackers to exploit authentication bypass issues for unauthorized access and disruptive actions.
The Impact of CVE-2020-12126
The vulnerability enables attackers to:
- Leak router settings
- Change configuration variables
- Cause denial of service through an unauthenticated endpoint
Technical Details of CVE-2020-12126
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The vulnerability allows unauthorized users to bypass authentication mechanisms in the /cgi-bin/ endpoint of the WAVLINK WN530H4 router, leading to various security risks.
Affected Systems and Versions
- Affected Product: WAVLINK WN530H4
- Vulnerable Version: M30H4.V5030.190403
Exploitation Mechanism
Attackers can exploit the authentication bypass vulnerabilities in the /cgi-bin/ endpoint to gain unauthorized access, manipulate router settings, and disrupt services without proper authentication.
Mitigation and Prevention
To address CVE-2020-12126, follow these mitigation strategies:
Immediate Steps to Take
- Disable access to the /cgi-bin/ endpoint if not essential
- Implement strong, unique passwords for router access
- Monitor network traffic for any suspicious activities
Long-Term Security Practices
- Regularly update router firmware to patch known vulnerabilities
- Conduct security audits to identify and address potential weaknesses
Patching and Updates
- Apply firmware updates provided by WAVLINK to fix the authentication bypass vulnerabilities