CVE-2021-30229 : Exploit Details and Defense Strategies

China Mobile An Lianbao WF-1 router 1.0.1 is vulnerable to CVE-2021-30229, which allows remote attackers to execute arbitrary commands. Here's a detailed overview of this CVE.

Understanding CVE-2021-30229

This section will provide insights into the nature and impact of the vulnerability.

What is CVE-2021-30229?

The api/zrDm/set_zrDm interface in China Mobile An Lianbao WF-1 router 1.0.1 allows remote attackers to execute arbitrary commands via shell metacharacters in the dm_enable, AppKey, or Pwd parameter.

The Impact of CVE-2021-30229

The vulnerability in the router could enable malicious actors to execute unauthorized commands, potentially leading to a complete compromise of the device and network.

Technical Details of CVE-2021-30229

This section will delve into the technical specifics of the CVE.

Vulnerability Description

The specific vulnerability lies in the improper handling of input data in the mentioned interface, allowing for command injection attacks.

Affected Systems and Versions

China Mobile An Lianbao WF-1 router version 1.0.1 is confirmed to be impacted by this vulnerability.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by injecting malicious shell metacharacters through certain parameters, leading to the execution of unauthorized commands.

Mitigation and Prevention

Understanding the steps to mitigate and prevent the exploitation of this vulnerability is crucial.

Immediate Steps to Take

It is recommended to restrict access to the vulnerable interface and apply relevant security patches as soon as they become available.

Long-Term Security Practices

Implementing network segmentation, strong access controls, and regular security assessments can reduce the risk of similar vulnerabilities.

Patching and Updates

Regularly check for security updates from the vendor and apply them promptly to ensure the device is protected against known vulnerabilities.