CVE-2021-34215 : What You Need to Know

A detailed overview of CVE-2021-34215, a vulnerability related to cross-site scripting in TOTOLINK A3002R version V1.1.1-B20200824.

Understanding CVE-2021-34215

This section delves into the nature of CVE-2021-34215 and its implications.

What is CVE-2021-34215?

The CVE-2021-34215 vulnerability involves cross-site scripting in tcpipwan.htm in TOTOLINK A3002R version V1.1.1-B20200824. Attackers can execute arbitrary JavaScript by tampering with the "Service Name" field.

The Impact of CVE-2021-34215

The vulnerability can potentially be exploited by malicious actors to run unauthorized JavaScript code, posing a severe risk to affected systems.

Technical Details of CVE-2021-34215

Explore the specifics of the CVE-2021-34215 vulnerability.

Vulnerability Description

The flaw in tcpipwan.htm in the TOTOLINK A3002R firmware version V1.1.1-B20200824 enables threat actors to execute unauthorized JavaScript through alterations in the "Service Name" attribute.

Affected Systems and Versions

The TOTOLINK A3002R version V1.1.1-B20200824 is confirmed to be impacted by this security issue.

Exploitation Mechanism

By manipulating the "Service Name" parameter in tcpipwan.htm, attackers can inject and execute arbitrary JavaScript code, potentially compromising the device.

Mitigation and Prevention

Discover ways to address and prevent the CVE-2021-34215 vulnerability.

Immediate Steps to Take

Users are advised to update the TOTOLINK A3002R firmware to a secure version and avoid interacting with untrusted sources that may trigger the exploit.

Long-Term Security Practices

Implementing network security measures, such as firewalls and intrusion detection systems, can fortify the defense against cross-site scripting attacks.

Patching and Updates

Regularly check for firmware updates from TOTOLINK and apply patches promptly to mitigate the risk of exploitation.