CVE-2021-33965 : What You Need to Know
Learn about CVE-2021-33965 affecting China Mobile An Lianbao WF-1 V1.0.1 router. Understand the impact, technical details, and mitigation steps for this command injection vulnerability.
China Mobile An Lianbao WF-1 V1.0.1 router is affected by a command injection vulnerability in the /api/ZRMesh/set_ZRMesh web interface. This vulnerability allows attackers to execute remote commands.
Understanding CVE-2021-33965
This section will cover details about the vulnerability.
What is CVE-2021-33965?
The China Mobile An Lianbao WF-1 V1.0.1 router is prone to a command injection vulnerability in the parameters mesh_enable and mesh_device, which can be exploited by attackers to run arbitrary commands on the device.
The Impact of CVE-2021-33965
The vulnerability can be exploited by malicious actors to gain unauthorized access to the affected router and execute arbitrary commands, leading to a complete compromise of the device and potentially the network.
Technical Details of CVE-2021-33965
This section will delve into the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability exists in the way parameters are handled in the /api/ZRMesh/set_ZRMesh web interface, allowing for unauthorized command execution.
Affected Systems and Versions
China Mobile An Lianbao WF-1 V1.0.1 router is impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specifically crafted POST requests with malicious payloads in the mesh_enable and mesh_device parameters.
Mitigation and Prevention
Here, we will discuss how to mitigate the risks associated with CVE-2021-33965.
Immediate Steps to Take
Users are advised to update their routers to the latest firmware version provided by China Mobile to address this vulnerability. Additionally, it is recommended to restrict access to the router's web interface.
Long-Term Security Practices
Implementing network segmentation, regularly monitoring for unauthorized access, and employing strong firewall rules can help enhance the overall security posture.
Patching and Updates
Ensure timely installation of security patches and updates released by the vendor to safeguard against known vulnerabilities and prevent potential exploitation.