CVE-2020-24578 : Security Advisory and Response

An issue was discovered on D-Link DSL-2888A devices with firmware prior to AU_2.31_V1.1.47ae55. It has a misconfigured FTP service that allows a malicious network user to access system folders and download sensitive files (such as the password hash file).

Understanding CVE-2020-24578

This CVE identifies a vulnerability in D-Link DSL-2888A devices that could be exploited by a malicious network user.

What is CVE-2020-24578?

The vulnerability in D-Link DSL-2888A devices allows unauthorized access to system folders and sensitive files through a misconfigured FTP service.

The Impact of CVE-2020-24578

The vulnerability could lead to unauthorized access to sensitive information, such as password hash files, posing a risk to the confidentiality of data stored on the affected devices.

Technical Details of CVE-2020-24578

This section provides more technical insights into the vulnerability.

Vulnerability Description

The misconfigured FTP service on D-Link DSL-2888A devices with firmware prior to AU_2.31_V1.1.47ae55 allows malicious network users to access system folders and download sensitive files.

Affected Systems and Versions

Affected Device: D-Link DSL-2888A
Firmware Version: Prior to AU_2.31_V1.1.47ae55

Exploitation Mechanism

Malicious network users can exploit the misconfigured FTP service to gain unauthorized access to system folders and download sensitive files, compromising the security of the device.

Mitigation and Prevention

Protecting against CVE-2020-24578 involves taking immediate steps and implementing long-term security practices.

Immediate Steps to Take

Update the firmware of D-Link DSL-2888A devices to version AU_2.31_V1.1.47ae55 or later.
Disable FTP services if not required to mitigate the risk of unauthorized access.

Long-Term Security Practices

Regularly monitor and audit network services and configurations to identify vulnerabilities promptly.
Implement network segmentation to restrict access to sensitive files and folders.

Patching and Updates

Ensure timely installation of security patches and firmware updates provided by D-Link to address the vulnerability.