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CVE-2020-9275 : What You Need to Know

Discover the CVE-2020-9275 vulnerability on D-Link DSL-2640B B2 EU_4.01B devices allowing remote, unauthenticated exfiltration of administrative credentials. Learn about impacts, mitigation, and prevention.

An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices allowing remote, unauthenticated exfiltration of administrative credentials.

Understanding CVE-2020-9275

This CVE identifies a vulnerability on D-Link DSL-2640B B2 EU_4.01B devices that enables the remote extraction of administrative credentials.

What is CVE-2020-9275?

The vulnerability allows unauthorized parties to retrieve administrative credentials remotely without authentication.

The Impact of CVE-2020-9275

The exploitation of this vulnerability can lead to unauthorized access to sensitive information and compromise the security of affected devices.

Technical Details of CVE-2020-9275

This section provides technical insights into the vulnerability.

Vulnerability Description

A cfm UDP service on port 65002 on D-Link DSL-2640B B2 EU_4.01B devices permits the remote exfiltration of administrative credentials.

Affected Systems and Versions

        Product: D-Link DSL-2640B B2 EU_4.01B
        Version: Not applicable

Exploitation Mechanism

The vulnerability allows attackers to remotely extract administrative credentials without the need for authentication.

Mitigation and Prevention

Protecting against and addressing the CVE-2020-9275 vulnerability.

Immediate Steps to Take

        Disable the affected service or port to prevent unauthorized access.
        Monitor network traffic for any suspicious activity.
        Implement firewall rules to restrict access to vulnerable services.

Long-Term Security Practices

        Regularly update firmware and software to patch known vulnerabilities.
        Conduct security assessments and penetration testing to identify and address weaknesses.
        Educate users on best practices for secure device configuration and usage.

Patching and Updates

        Check for security advisories and updates from D-Link to address the CVE-2020-9275 vulnerability.

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