CVE-2021-35326 Explained : Impact and Mitigation

A vulnerability in TOTOLINK A720R router with firmware v4.1.5cu.470_B20200911 allows attackers to download the configuration file via sending a crafted HTTP request.

Understanding CVE-2021-35326

This CVE identifies a security vulnerability in the TOTOLINK A720R router that enables attackers to obtain the configuration file by exploiting a specific flaw.

What is CVE-2021-35326?

The vulnerability in the TOTOLINK A720R router with a specific firmware version allows malicious actors to download the configuration file through a carefully designed HTTP request.

The Impact of CVE-2021-35326

This vulnerability can lead to unauthorized access to sensitive configuration data, potentially compromising the security and privacy of the affected systems.

Technical Details of CVE-2021-35326

The technical details of CVE-2021-35326 include the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

A flaw in the TOTOLINK A720R router firmware version v4.1.5cu.470_B20200911 permits threat actors to exfiltrate the configuration file using a maliciously crafted HTTP request.

Affected Systems and Versions

The vulnerability impacts TOTOLINK A720R routers running firmware version v4.1.5cu.470_B20200911.

Exploitation Mechanism

By sending a specifically designed HTTP request, attackers can exploit this vulnerability to retrieve the router's configuration file.

Mitigation and Prevention

To address CVE-2021-35326, immediate steps need to be taken by affected users, along with the adoption of long-term security practices and timely patching and updates.

Immediate Steps to Take

Users should update the TOTOLINK A720R router firmware to the latest version to mitigate the risk of unauthorized configuration file access.

Long-Term Security Practices

Implementing network segmentation, strong authentication measures, and regular security audits can enhance the overall security posture and prevent similar exploits.

Patching and Updates

Regularly check for firmware updates from TOTOLINK and apply them promptly to ensure protection against known vulnerabilities.