CVE-2021-43661 Explained : Impact and Mitigation

This CVE-2021-43661 article provides details about the reflected cross-site scripting (XSS) vulnerability in totolink EX300_v2 V4.0.3c.140_B20210429 via /home.asp component.

Understanding CVE-2021-43661

This section elaborates on the vulnerability and its impacts.

What is CVE-2021-43661?

totolink EX300_v2 V4.0.3c.140_B20210429 contains a reflected cross-site scripting (XSS) vulnerability through /home.asp component, allowing attackers to execute malicious scripts on users' browsers.

The Impact of CVE-2021-43661

The vulnerability can lead to unauthorized data access, cookie theft, session hijacking, and potentially complete system compromise.

Technical Details of CVE-2021-43661

Here, you will find technical specifics of the CVE.

Vulnerability Description

The vulnerability in totolink EX300_v2 V4.0.3c.140_B20210429 allows attackers to inject and execute malicious scripts through /home.asp component.

Affected Systems and Versions

Product: totolink EX300_v2
Version: V4.0.3c.140_B20210429

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious link containing the script and tempting victims to click on it, leading to script execution.

Mitigation and Prevention

Learn about preventing and mitigating the effects of CVE-2021-43661.

Immediate Steps to Take

Disable /home.asp component if not required.
Implement input validation to block malicious scripts.
Regularly monitor and update security patches.

Long-Term Security Practices

Conduct regular security assessments and penetration testing.
Educate users on safe browsing habits.

Patching and Updates

Apply security patches provided by totolink to address the XSS vulnerability in totolink EX300_v2 V4.0.3c.140_B20210429.