CVE-2021-25812 : Vulnerability Insights and Analysis

A command injection vulnerability in China Mobile An Lianbao WF-1 1.01 allows attackers to execute arbitrary commands via the 'ip' parameter in a POST request to /api/ZRQos/set_online_client.

Understanding CVE-2021-25812

This CVE identifier pertains to a security flaw in the China Mobile An Lianbao WF-1 1.01 router that could be exploited through a specific POST request.

What is CVE-2021-25812?

The CVE-2021-25812 is a command injection vulnerability that enables threat actors to run commands using the 'ip' parameter.

The Impact of CVE-2021-25812

This vulnerability could lead to unauthorized command execution, potentially compromising the affected system's confidentiality, integrity, and availability.

Technical Details of CVE-2021-25812

The technical details of this CVE include:

Vulnerability Description

The vulnerability arises from improper input validation of the 'ip' parameter in a POST request to /api/ZRQos/set_online_client, allowing attackers to inject and execute commands.

Affected Systems and Versions

China Mobile An Lianbao WF-1 version 1.01 is confirmed to be affected by this vulnerability.

Exploitation Mechanism

Hackers can exploit this issue by utilizing a crafted POST request to achieve command injection and potentially take control of the target system.

Mitigation and Prevention

To address CVE-2021-25812, consider the following measures:

Immediate Steps to Take

Restrict network access to vulnerable devices.
Regularly monitor for unauthorized changes or activities.

Long-Term Security Practices

Implement strong input validation mechanisms.
Keep systems and software updated with the latest security patches.

Patching and Updates

Ensure that the China Mobile An Lianbao WF-1 routers are updated with the latest firmware releases that address this vulnerability.