CVE-2017-16264 : Exploit Details and Defense Strategies

CVE-2017-16264, assigned by Talos, pertains to multiple buffer overflow vulnerabilities in the Insteon Hub's PubNub message handler. These vulnerabilities can be exploited by sending specially crafted commands through the PubNub service, potentially leading to a stack-based buffer overflow and arbitrary data overwriting.

Understanding CVE-2017-16264

This CVE involves buffer overflow vulnerabilities in the Insteon Hub's PubNub message handler.

What is CVE-2017-16264?

The Insteon Hub, with firmware version 1012, is susceptible to buffer overflow attacks in its PubNub message handler for the "cc" channel.

The Impact of CVE-2017-16264

The exploitation of these vulnerabilities can result in a stack-based buffer overflow and the potential overwriting of arbitrary data.

Technical Details of CVE-2017-16264

The following are technical details of CVE-2017-16264:

Vulnerability Description

The vulnerability involves a buffer overflow in the PubNub message handler of the Insteon Hub, triggered by specially crafted commands through the PubNub service.

Affected Systems and Versions

Vendor: Insteon
Product: Hub
Versions Affected: Not specified

Exploitation Mechanism

Attacker sends authenticated HTTP request
Buffer overflow occurs in the cmd l_b component
Buffer located at

$sp+0x1b4

is vulnerable
Input exceeding 8 bytes causes overflow

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2017-16264:

Immediate Steps to Take

Update Insteon Hub firmware to the latest version
Implement network segmentation to limit exposure

Long-Term Security Practices

Regularly monitor and update firmware for security patches
Conduct security assessments to identify vulnerabilities

Patching and Updates

Apply patches provided by Insteon promptly to address the buffer overflow vulnerabilities