CVE-2018-3950 : What You Need to Know

A vulnerability in the ping and tracert features of TP-Link TL-R600VPN HWv3 FRNv1.3.0 and HWv2 FRNv1.2.3 http server allows remote code execution through a specially crafted IP address.

Understanding CVE-2018-3950

This CVE involves a remote code execution vulnerability in specific versions of TP-Link routers.

What is CVE-2018-3950?

CVE-2018-3950 is a remote code execution vulnerability in the ping and tracert features of TP-Link TL-R600VPN HWv3 FRNv1.3.0 and HWv2 FRNv1.2.3 http server.

The Impact of CVE-2018-3950

CVSS Base Score: 7.2 (High)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: High
Confidentiality, Integrity, and Availability Impact: High
This vulnerability can be exploited by an attacker through a single authenticated HTTP request, potentially leading to the execution of malicious code remotely.

Technical Details of CVE-2018-3950

This section provides more in-depth technical details about the vulnerability.

Vulnerability Description

The vulnerability allows for remote code execution by causing a stack overflow through a specially designed IP address.

Affected Systems and Versions

Affected Product: TP-Link
Affected Versions:
TP-Link TL-R600VPN HWv3 FRNv1.3.0
TP-Link TL-R600VPN HWv2 FRNv1.2.3

Exploitation Mechanism

The vulnerability can be triggered by an attacker using a specifically crafted IP address, leading to a stack overflow and subsequent remote code execution.

Mitigation and Prevention

Protecting systems from CVE-2018-3950 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly.
Implement network security measures to restrict access to vulnerable services.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch all software and firmware.
Conduct security assessments and penetration testing to identify vulnerabilities.
Educate users and administrators about safe browsing habits and security best practices.

Patching and Updates

Check for security advisories from TP-Link and apply patches as soon as they are available.