CVE-2021-45904 : Exploit Details and Defense Strategies

OpenWrt 21.02.1 allows XSS via the Port Forwards Add Name screen.

Understanding CVE-2021-45904

OpenWrt 21.02.1 is susceptible to cross-site scripting (XSS) through the Port Forwards Add Name screen.

What is CVE-2021-45904?

OpenWrt 21.02.1 is affected by a vulnerability that enables an attacker to perform XSS attacks via the Port Forwards Add Name screen.

The Impact of CVE-2021-45904

Successful exploitation can lead to unauthorized access to sensitive information or perform actions on behalf of the user.
It may compromise the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2021-45904

OpenWrt 21.02.1 vulnerability technical details.

Vulnerability Description

The issue allows attackers to execute malicious scripts through the Port Forwards Add Name screen, potentially compromising user data.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Version: n/a

Exploitation Mechanism

Attackers can inject and execute arbitrary scripts through crafted input in the Port Forwards Add Name screen.

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2021-45904 vulnerability.

Immediate Steps to Take

Apply security patches provided by OpenWrt promptly.
Avoid accessing the Port Forwards Add Name screen from untrusted sources.

Long-Term Security Practices

Regularly update and patch the OpenWrt software to address security vulnerabilities.
Educate users on the risks of XSS attacks and safe browsing practices.

Patching and Updates

Ensure your OpenWrt installation is up to date with the latest security patches.