CVE-2021-30228 : Security Advisory and Response

The api/ZRAndlink/set_ZRAndlink interface in China Mobile An Lianbao WF-1 router 1.0.1 allows remote attackers to execute arbitrary commands via shell metacharacters in the iandlink_proc_enable parameter.

Understanding CVE-2021-30228

This CVE highlights a vulnerability in the China Mobile An Lianbao WF-1 router that enables remote attackers to execute arbitrary commands.

What is CVE-2021-30228?

The vulnerability lies in the api/ZRAndlink/set_ZRAndlink interface of the router, permitting attackers to run malicious commands using shell metacharacters.

The Impact of CVE-2021-30228

With this vulnerability, threat actors can exploit the router to execute unauthorized commands, potentially leading to severe compromise of the device and network.

Technical Details of CVE-2021-30228

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

The flaw in the interface allows attackers to inject and execute arbitrary commands through specific parameters, compromising the router's security.

Affected Systems and Versions

The China Mobile An Lianbao WF-1 router version 1.0.1 is known to be affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit the vulnerability by injecting shell metacharacters in the designated parameter to execute unauthorized commands.

Mitigation and Prevention

To secure your systems and data, immediate actions and long-term security practices are crucial.

Immediate Steps to Take

Update the router firmware to the latest version or apply patches provided by the vendor. Additionally, restrict access to the vulnerable interface.

Long-Term Security Practices

Regularly monitor for security updates, conduct vulnerability assessments, and implement network segmentation to isolate critical devices.

Patching and Updates

Stay vigilant for security advisories from the vendor and promptly apply patches to address known vulnerabilities.