CVE-2020-28877 : Vulnerability Insights and Analysis

A buffer overflow vulnerability in the TP-Link WR and WDR series can lead to potential security risks.

Understanding CVE-2020-28877

This CVE involves a buffer overflow issue in the devDiscoverHandle server of TP-Link WR and WDR series devices.

What is CVE-2020-28877?

The vulnerability arises from a buffer overflow in the copy_msg_element function of the devDiscoverHandle server in TP-Link WR and WDR series devices.

The Impact of CVE-2020-28877

Exploitation of this vulnerability could allow an attacker to execute arbitrary code or cause a denial of service on the affected devices.

Technical Details of CVE-2020-28877

This section provides more technical insights into the CVE.

Vulnerability Description

The buffer overflow occurs in the copy_msg_element function of the devDiscoverHandle server in TP-Link WR and WDR series devices.

Affected Systems and Versions

TP-Link WR and WDR series devices, including WDR7400, WDR7500, WDR7660, WDR7800, WDR8400, WDR8500, WDR8600, WDR8620, WDR8640, WDR8660, WR880N, WR886N, WR890N, WR890N, WR882N, and WR708N.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted messages to the devDiscoverHandle server, triggering the buffer overflow.

Mitigation and Prevention

Protecting systems from CVE-2020-28877 is crucial to maintaining security.

Immediate Steps to Take

Apply security patches provided by TP-Link promptly.
Monitor network traffic for any suspicious activity targeting the affected devices.

Long-Term Security Practices

Regularly update firmware and software on all network devices.
Implement network segmentation to contain potential attacks and limit their impact.

Patching and Updates

Stay informed about security updates from TP-Link and apply them as soon as they are available.