CVE-2021-20163 : Security Advisory and Response

This article discusses a vulnerability in Trendnet AC2600 TEW-827DRU version 2.08B01 that leads to information leakage through the FTP web page, exposing usernames and passwords.

Understanding CVE-2021-20163

This section delves into the impact and technical details of the CVE-2021-20163 vulnerability.

What is CVE-2021-20163?

The CVE-2021-20163 vulnerability affects Trendnet AC2600 TEW-827DRU version 2.08B01, causing information disclosure via the ftp web page.

The Impact of CVE-2021-20163

The vulnerability exposes usernames and passwords for all FTP users in plaintext on the ftpserver.asp page.

Technical Details of CVE-2021-20163

This section outlines the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

Trendnet AC2600 TEW-827DRU version 2.08B01 leaks information via the ftp web page, revealing usernames and passwords for all FTP users.

Affected Systems and Versions

The vulnerability impacts Trendnet AC2600 TEW-827DRU version 2.08B01.

Exploitation Mechanism

Usernames and passwords for all FTP users are exposed in plaintext on the ftpserver.asp page.

Mitigation and Prevention

This section provides guidance on immediate steps to take, long-term security practices, and the importance of patching and updates.

Immediate Steps to Take

Users should avoid exposing any sensitive information on the affected ftp web page.

Long-Term Security Practices

Regularly review and update security configurations and passwords for improved protection.

Patching and Updates

Apply security patches provided by Trendnet to address the information disclosure vulnerability in version 2.08B01 of TEW-827DRU.