CVE-2018-12693 : Security Advisory and Response

A vulnerability related to the TP-Link TL-WA850RE Wi-Fi Range Extender with hardware version 5 has been discovered, allowing remote authenticated users to disrupt the device's functioning, leading to a denial of service.

Understanding CVE-2018-12693

This CVE identifies a stack-based buffer overflow in the TP-Link TL-WA850RE Wi-Fi Range Extender hardware version 5.

What is CVE-2018-12693?

The vulnerability in the TP-Link TL-WA850RE Wi-Fi Range Extender hardware version 5 allows remote authenticated users to cause a denial of service by sending a long type parameter to a specific endpoint.

The Impact of CVE-2018-12693

The vulnerability enables remote authenticated users to disrupt the device's functioning, resulting in a denial of service.

Technical Details of CVE-2018-12693

This section provides detailed technical information about the vulnerability.

Vulnerability Description

A stack-based buffer overflow in the TP-Link TL-WA850RE Wi-Fi Range Extender hardware version 5 allows remote authenticated users to cause a denial of service by sending a long type parameter to a specific endpoint.

Affected Systems and Versions

Product: TP-Link TL-WA850RE Wi-Fi Range Extender
Hardware Version: 5
Status: Affected

Exploitation Mechanism

The disruption is caused by sending a long type parameter to the /data/syslog.filter.json endpoint.

Mitigation and Prevention

To address CVE-2018-12693, follow these mitigation and prevention steps:

Immediate Steps to Take

Implement firewall rules to restrict access to the affected device.
Regularly monitor network traffic for any suspicious activity.

Long-Term Security Practices

Keep the device firmware up to date to patch known vulnerabilities.
Conduct regular security assessments and penetration testing to identify and address potential weaknesses.

Patching and Updates

Check for firmware updates provided by TP-Link and apply them promptly to mitigate the vulnerability.