CVE-2020-10916 Explained : Impact and Mitigation

This vulnerability affects TP-Link TL-WA855RE Wi-Fi extenders, allowing network-adjacent attackers to escalate privileges by bypassing authentication. The flaw lies in the first-time setup process, enabling password resets and code execution.

Understanding CVE-2020-10916

This CVE entry describes a high-severity vulnerability in TP-Link TL-WA855RE Wi-Fi extenders.

What is CVE-2020-10916?

CVE-2020-10916 is a vulnerability that permits network-adjacent attackers to elevate privileges on affected TP-Link TL-WA855RE devices by exploiting a flaw in the first-time setup process.

The Impact of CVE-2020-10916

CVSS Base Score: 8.0 (High)
Attack Vector: Adjacent Network
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Privileges Required: Low

Technical Details of CVE-2020-10916

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows attackers to reset the Admin account password and execute code on the device due to improper validation during the first-time setup.

Affected Systems and Versions

Affected Product: TP-Link TL-WA855RE
Affected Version: Firmware Ver: 855rev4-up-ver1-0-1-P1[20191213-rel60361]

Exploitation Mechanism

Attackers can bypass authentication to exploit the lack of validation in first-time setup requests, enabling privilege escalation.

Mitigation and Prevention

Protecting systems from CVE-2020-10916 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the firmware to the latest version provided by TP-Link.
Monitor network activity for any suspicious behavior.
Restrict access to the device to authorized personnel only.

Long-Term Security Practices

Regularly update firmware and security patches.
Implement strong authentication mechanisms.
Conduct security audits and penetration testing.

Patching and Updates

Ensure timely installation of security patches and updates to mitigate the risk of exploitation.