CVE-2021-40041 Explained : Impact and Mitigation

This article provides details about a Cross-Site Scripting (XSS) vulnerability in the HUAWEI WS318n-21 product versions 10.0.2.2, 10.0.2.5, and 10.0.2.6.

Understanding CVE-2021-40041

This section delves into the nature of the XSS vulnerability affecting the HUAWEI WS318n-21 product.

What is CVE-2021-40041?

CVE-2021-40041 is a Cross-Site Scripting (XSS) vulnerability in the HUAWEI WS318n product when processing network settings. This vulnerability allows a local authenticated attacker to inject special characters, leading to information disclosure.

The Impact of CVE-2021-40041

The successful exploitation of this vulnerability could result in certain information disclosure, posing a risk to the confidentiality of data.

Technical Details of CVE-2021-40041

Explore the specific technical details related to the CVE-2021-40041 vulnerability.

Vulnerability Description

The vulnerability stems from insufficient validation of user input during the processing of network settings on the HUAWEI WS318n-21 product.

Affected Systems and Versions

The following product versions are affected:

WS318n-21 10.0.2.2
WS318n-21 10.0.2.5
WS318n-21 10.0.2.6

Exploitation Mechanism

To exploit this vulnerability, a local authenticated attacker needs to inject special characters into the network settings, taking advantage of the lack of proper input validation.

Mitigation and Prevention

Learn about the necessary steps to mitigate and prevent the exploitation of CVE-2021-40041.

Immediate Steps to Take

Apply the latest security patches provided by HUAWEI.
Implement strict input validation mechanisms to prevent malicious injections.
Regularly monitor network settings for any suspicious activities.

Long-Term Security Practices

Conduct regular security training for personnel to recognize and respond to potential threats promptly.
Keep abreast of security advisories from HUAWEI and other relevant sources.

Patching and Updates

Ensure timely installation of security patches released by HUAWEI to address the vulnerability and enhance the security of the WS318n-21 product.