CVE-2020-24580 : What You Need to Know

An issue was discovered on D-Link DSL-2888A devices with firmware prior to AU_2.31_V1.1.47ae55. Lack of authentication functionality allows an attacker to assign a static IP address that was once used by a valid user.

Understanding CVE-2020-24580

This CVE identifies a security vulnerability in D-Link DSL-2888A devices that could be exploited by attackers.

What is CVE-2020-24580?

The CVE-2020-24580 vulnerability pertains to a lack of authentication on D-Link DSL-2888A devices, enabling unauthorized assignment of static IP addresses.

The Impact of CVE-2020-24580

The vulnerability allows attackers to assign IP addresses previously used by legitimate users, potentially leading to unauthorized access and network disruptions.

Technical Details of CVE-2020-24580

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The issue arises from the absence of proper authentication mechanisms, enabling malicious actors to manipulate IP addresses on affected devices.

Affected Systems and Versions

Affected Systems: D-Link DSL-2888A devices
Vulnerable Versions: Firmware versions prior to AU_2.31_V1.1.47ae55

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the lack of authentication to assign static IP addresses previously used by valid users.

Mitigation and Prevention

Protecting systems from CVE-2020-24580 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update affected devices to the latest firmware version that addresses the authentication issue.
Implement network segmentation to limit the impact of potential unauthorized access.

Long-Term Security Practices

Regularly monitor network activity for any unauthorized IP address assignments.
Conduct security audits to identify and address any potential vulnerabilities in network devices.

Patching and Updates

Apply patches and updates provided by D-Link to fix the authentication vulnerability and enhance device security.