CVE-2020-14140 : What You Need to Know

CVE-2020-14140 is a vulnerability in Xiaomi routers that allows attackers to reveal WIFI passwords through an unauthenticated API during firmware updates. This CVE was published on March 29, 2023, by Xiaomi.

Understanding CVE-2020-14140

This vulnerability exposes a security flaw in Xiaomi routers that can be exploited by attackers to gain unauthorized access to WIFI passwords.

What is CVE-2020-14140?

The CVE-2020-14140 vulnerability in Xiaomi routers occurs due to the lack of access control policies on certain API interfaces, allowing attackers to execute background command injections.

The Impact of CVE-2020-14140

The exploitation of this vulnerability can lead to unauthorized access to WIFI passwords, compromising the security and privacy of users' networks.

Technical Details of CVE-2020-14140

This section provides detailed technical information about the CVE-2020-14140 vulnerability.

Vulnerability Description

The vulnerability arises from an unauthenticated API in Xiaomi routers that exposes WIFI passwords during firmware updates.

Affected Systems and Versions

Vendor: Xiaomi
Product: Xiaomi Multiple Devices
Affected Versions: Firmware updates between 2020-2022

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the unauthenticated API to reveal WIFI passwords and execute background command injections.

Mitigation and Prevention

To address CVE-2020-14140 and enhance security, follow these mitigation strategies:

Immediate Steps to Take

Update router firmware to the latest version provided by Xiaomi.
Change WIFI passwords regularly to prevent unauthorized access.
Monitor network activity for any suspicious behavior.

Long-Term Security Practices

Implement strong access control policies for API interfaces.
Conduct regular security audits and penetration testing on network devices.

Patching and Updates

Stay informed about security advisories from Xiaomi and apply patches promptly to mitigate known vulnerabilities.