CVE-2020-35391 Explained : Impact and Mitigation

CVE-2020-35391 is a vulnerability found in Tenda N300 F3 12.01.01.48 devices that allows remote attackers to obtain sensitive information. This CVE was published on January 1, 2021.

Understanding CVE-2020-35391

This section provides insights into the nature and impact of CVE-2020-35391.

What is CVE-2020-35391?

The vulnerability in Tenda N300 F3 12.01.01.48 devices enables attackers to access sensitive data, potentially including http_passwd, through a direct request for cgi-bin/DownloadCfg/RouterCfm.cfg.

The Impact of CVE-2020-35391

The vulnerability poses a critical threat with a CVSS base score of 9.6, indicating a high impact on confidentiality, integrity, and availability of the affected devices.

Technical Details of CVE-2020-35391

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability allows remote attackers to extract sensitive information by manipulating HTTP requests to the affected devices.

Affected Systems and Versions

Vendor: Tenda
Product: N300 F3 12.01.01.48
Affected Version: All versions

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a direct request for a specific file on the device, leading to unauthorized access to sensitive data.

Mitigation and Prevention

Learn how to protect your systems from CVE-2020-35391.

Immediate Steps to Take

Implement network segmentation to limit access to vulnerable devices.
Monitor network traffic for any suspicious activity targeting the affected devices.
Apply firewall rules to restrict access to critical system files.

Long-Term Security Practices

Regularly update firmware and security patches for the affected devices.
Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Check for patches and updates released by Tenda to address the CVE-2020-35391 vulnerability.