CVE-2017-16340 : What You Need to Know

Insteon Hub firmware version 1012 is vulnerable to a buffer overflow attack, allowing an attacker to exploit the system through an authenticated HTTP request.

Understanding CVE-2017-16340

This CVE involves a critical vulnerability in the Insteon Hub firmware version 1012, potentially leading to a buffer overflow attack.

What is CVE-2017-16340?

This vulnerability in the Insteon Hub firmware version 1012 allows an attacker to trigger a buffer overflow by sending an authenticated HTTP request.

The Impact of CVE-2017-16340

The vulnerability has a CVSS base score of 8.5, indicating a high severity level with significant impacts on confidentiality, integrity, and availability of the system.

Technical Details of CVE-2017-16340

The technical aspects of the CVE provide insights into the vulnerability and its exploitation.

Vulnerability Description

The vulnerability occurs when the value of the s_dport key at a specific memory address is copied to a buffer that can only hold 6 bytes, leading to a buffer overflow if exceeded.

Affected Systems and Versions

Product: Insteon
Vendor: Insteon
Affected Version: Insteon Hub 2245-222 - Firmware version 1012

Exploitation Mechanism

Attacker sends an authenticated HTTP request
Value of s_dport key at 0x9d01c0e8 is copied to a 6-byte buffer at 0xa000180c using strcpy
Buffer overflow occurs if the buffer size is exceeded

Mitigation and Prevention

Protecting systems from CVE-2017-16340 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Insteon promptly
Monitor network traffic for any suspicious activities
Restrict access to vulnerable systems

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities
Conduct security assessments and penetration testing to identify weaknesses

Patching and Updates

Stay informed about security advisories from Insteon
Implement a robust patch management process to apply updates promptly