CVE-2018-12692 : Vulnerability Insights and Analysis

TP-Link TL-WA850RE Wi-Fi Range Extender with hardware version 5 allows remote authenticated users to execute arbitrary commands via shell metacharacters in the wps_setup_pin parameter to /data/wps.setup.json.

Understanding CVE-2018-12692

This CVE describes a vulnerability in TP-Link TL-WA850RE Wi-Fi Range Extender hardware version 5 that enables authenticated users to execute arbitrary commands remotely.

What is CVE-2018-12692?

The hardware version 5 of TP-Link TL-WA850RE Wi-Fi Range Extender allows authenticated users to execute arbitrary commands by using shell metacharacters in the wps_setup_pin parameter of /data/wps.setup.json.

The Impact of CVE-2018-12692

This vulnerability can be exploited by authenticated users to remotely execute arbitrary commands, potentially leading to unauthorized access, data theft, or system compromise.

Technical Details of CVE-2018-12692

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in TP-Link TL-WA850RE Wi-Fi Range Extender hardware version 5 arises from the improper handling of shell metacharacters in the wps_setup_pin parameter of /data/wps.setup.json.

Affected Systems and Versions

Product: TP-Link TL-WA850RE Wi-Fi Range Extender
Vendor: TP-Link
Version: Hardware version 5

Exploitation Mechanism

The vulnerability can be exploited by authenticated users who inject shell metacharacters into the wps_setup_pin parameter of /data/wps.setup.json to execute arbitrary commands.

Mitigation and Prevention

Protecting systems from CVE-2018-12692 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable remote access to the affected device if not required.
Regularly monitor for any unauthorized access or unusual activities.
Apply security patches provided by the vendor.

Long-Term Security Practices

Implement strong authentication mechanisms for remote access.
Conduct regular security assessments and penetration testing.
Keep systems and devices updated with the latest security patches.

Patching and Updates

TP-Link may release patches to address the vulnerability, and users should promptly apply these updates to mitigate the risk of exploitation.