CVE-2021-20165 : What You Need to Know

Trendnet AC2600 TEW-827DRU version 2.08B01 is affected by a Cross Site Request Forgery (CSRF) vulnerability due to improper implementation of CSRF protections. This results in pages lacking proper CSRF protections or mitigations, with easily bypassable CSRF tokens.

Understanding CVE-2021-20165

This vulnerability affects the Trendnet AC2600 TEW-827DRU version 2.08B01, exposing it to CSRF attacks.

What is CVE-2021-20165?

The CSRF vulnerability in Trendnet AC2600 TEW-827DRU version 2.08B01 allows attackers to perform unauthorized actions on behalf of authenticated users by tricking them into executing malicious actions.

The Impact of CVE-2021-20165

The impact of this vulnerability is significant as it enables attackers to forge requests, leading to unauthorized operations, data manipulation, and potential account compromise.

Technical Details of CVE-2021-20165

This section provides specific technical details on the vulnerability.

Vulnerability Description

Trendnet AC2600 TEW-827DRU version 2.08B01 lacks adequate CSRF protections, making CSRF tokens easily bypassable and allowing attackers to execute malicious actions.

Affected Systems and Versions

Only systems with Trendnet AC2600 TEW-827DRU version 2.08B01 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by tricking authenticated users into clicking on malicious links, leading to unauthorized actions on the application.

Mitigation and Prevention

To address CVE-2021-20165, immediate action and long-term security practices are recommended.

Immediate Steps to Take

Apply patches or updates provided by Trendnet promptly to fix the CSRF vulnerability.
Educate users about clicking on unknown links and practicing caution.

Long-Term Security Practices

Implement strict validation mechanisms for CSRF tokens to prevent bypass attacks.
Regularly monitor and audit web applications for CSRF vulnerabilities.

Patching and Updates

Stay informed about security updates from Trendnet and apply patches as soon as they are released.