CVE-2020-10973 : Security Advisory and Response

An issue was discovered in Wavlink WN530HG4, Wavlink WN531G3, Wavlink WN533A8, and Wavlink WN551K1 that allows unauthorized access to device configuration, including the administrator password.

Understanding CVE-2020-10973

This CVE identifies a vulnerability in certain Wavlink devices that could lead to a security breach.

What is CVE-2020-10973?

The vulnerability in Wavlink devices allows an attacker to retrieve the device's configuration, including the administrator password, without requiring any authentication. The attacker needs to perform a decryption step, but all necessary decryption information is easily accessible.

The Impact of CVE-2020-10973

The impact of this vulnerability is severe as it exposes sensitive information, such as administrator passwords, to unauthorized individuals, potentially leading to unauthorized access and control of the affected devices.

Technical Details of CVE-2020-10973

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability exists in the /cgi-bin/ExportAllSettings.sh script of the affected Wavlink devices, allowing a crafted POST request to reveal the device's configuration, including the administrator password.

Affected Systems and Versions

Products: Wavlink WN530HG4, Wavlink WN531G3, Wavlink WN533A8, Wavlink WN551K1
Versions: Not specified

Exploitation Mechanism

An attacker sends a specially crafted POST request to /cgi-bin/ExportAllSettings.sh
The attacker can retrieve the device's configuration, including the administrator password
No authentication is required for this exploit

Mitigation and Prevention

Protecting against and addressing the CVE-2020-10973 vulnerability is crucial for maintaining the security of the affected devices.

Immediate Steps to Take

Disable remote access to the device if not required
Regularly monitor device logs for any suspicious activities
Change the default administrator password to a strong, unique one

Long-Term Security Practices

Implement network segmentation to isolate critical devices
Conduct regular security assessments and penetration testing
Keep devices up to date with the latest firmware and security patches

Patching and Updates

Check for firmware updates from Wavlink and apply them promptly to address the vulnerability