CVE-2017-16328 : Security Advisory and Response

CVE-2017-16328 is a vulnerability found in the PubNub message handler for the "cc" channel of Insteon Hub firmware version 1012. This vulnerability allows for multiple buffer overflow exploits, potentially leading to arbitrary data overwriting.

Understanding CVE-2017-16328

This section provides insights into the nature and impact of the CVE-2017-16328 vulnerability.

What is CVE-2017-16328?

The vulnerability in the Insteon Hub firmware version 1012's PubNub message handler allows for stack-based buffer overflow attacks. By sending manipulated commands through the PubNub service, attackers can trigger a buffer overflow, leading to arbitrary data overwriting.

The Impact of CVE-2017-16328

The vulnerability poses a high risk, with a CVSS v3.0 base score of 8.5 (High severity). It can result in confidentiality, integrity, and availability impacts, making it crucial to address promptly.

Technical Details of CVE-2017-16328

This section delves into the technical aspects of the CVE-2017-16328 vulnerability.

Vulnerability Description

The vulnerability occurs in the cmd s_event_alarm function at memory address 0x9d01eb08, where a buffer overflow can be triggered by copying data exceeding the buffer's 32-byte limit.

Affected Systems and Versions

Vendor: Insteon
Product: Hub
Affected Version: Not specified

Exploitation Mechanism

To exploit this vulnerability, an attacker must send an authenticated HTTP request containing manipulated commands through the PubNub service.

Mitigation and Prevention

Protecting systems from CVE-2017-16328 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply security patches provided by Insteon promptly.
Monitor network traffic for any suspicious activities.
Restrict access to the affected system to authorized personnel only.

Long-Term Security Practices

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

Patching and Updates

Ensure that the Insteon Hub firmware is updated to a secure version that addresses the buffer overflow vulnerabilities.