CVE-2017-3216 Explained : Impact and Mitigation
Learn about CVE-2017-3216, a security flaw in routers using MediaTek SDK with WiMAX, allowing unauthorized access. Find affected systems and versions, exploitation details, and mitigation steps.
Routers using the MediaTek SDK (libmtk) with WiMAX functionality are vulnerable to an authentication bypass flaw that allows unauthorized access to the device.
Understanding CVE-2017-3216
This CVE involves a security vulnerability in routers that can be exploited to gain unauthorized access.
What is CVE-2017-3216?
This CVE pertains to routers utilizing the MediaTek SDK with WiMAX capabilities, where a flaw in a custom httpd plugin allows attackers to bypass authentication and change the administrator password.
The Impact of CVE-2017-3216
The vulnerability enables attackers to gain unauthorized access to affected devices by manipulating POST requests without authentication.
Technical Details of CVE-2017-3216
This section provides in-depth technical insights into the CVE.
Vulnerability Description
The flaw in the custom httpd plugin of routers using the MediaTek SDK allows attackers to bypass authentication and change the administrator password.
Affected Systems and Versions
- Huawei Technologies: BM2022 (2.10.14), HES-309M, HES-319M, HES-319M2W, HES-339M
- Green Packet: OX350
- ZTE: OX-330P
- ZyXEL: MAX218M (2.00(UXG.0)D0), MAX218M1W (2.00(UXE.3)D0), MAX218MW (2.00(UXD.2)D0), MAX308M (2.00(UUA.3)D0), MAX318M, MAX338M
- MADA: Soho Wireless Router (2.10.13)
Exploitation Mechanism
Attackers can exploit this vulnerability by sending crafted POST requests to change the administrator password and gain unauthorized access.
Mitigation and Prevention
Protecting systems from CVE-2017-3216 is crucial for maintaining security.
Immediate Steps to Take
- Apply patches and updates provided by the respective vendors.
- Monitor network traffic for any suspicious activities.
- Implement strong password policies and multi-factor authentication.
Long-Term Security Practices
- Regularly update firmware and software to address security vulnerabilities.
- Conduct security audits and penetration testing to identify and mitigate potential risks.
Patching and Updates
- Vendors like Huawei Technologies, Green Packet, ZTE, ZyXEL, and MADA should release patches to address the authentication bypass vulnerability.