CVE-2017-16270 : What You Need to Know

CVE-2017-16270 is a vulnerability found in the Insteon Hub firmware version 1012, leading to buffer overflow issues in the PubNub message handler. Attackers can exploit this vulnerability by sending crafted commands through the PubNub service, triggering a stack-based buffer overflow.

Understanding CVE-2017-16270

This CVE identifies multiple buffer overflow vulnerabilities in the Insteon Hub firmware version 1012.

What is CVE-2017-16270?

The vulnerability allows attackers to overwrite arbitrary data by exploiting buffer overflow in the PubNub message handler for the "cc" channel.

The Impact of CVE-2017-16270

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

Technical Details of CVE-2017-16270

The technical aspects of this CVE are as follows:

Vulnerability Description

The vulnerability is a stack-based buffer overflow (CWE-121) in the Insteon Hub firmware version 1012.

Affected Systems and Versions

Vendor: Insteon
Product: Hub
Affected Version: Not specified

Exploitation Mechanism

Attackers exploit the vulnerability by sending crafted commands via the PubNub service, triggering a stack-based buffer overflow.
An authenticated HTTP request is required to exploit this vulnerability.
The buffer overflow occurs in the PubNub message handler for the "cc" channel.
Specifically, the overflow happens in the cmd s_b, copying data to a buffer located at memory address 0x9d01679c.
The buffer size is 32 bytes, leading to arbitrary data overwriting.

Mitigation and Prevention

To address CVE-2017-16270, consider the following steps:

Immediate Steps to Take

Update the Insteon Hub firmware to a patched version.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Implement network segmentation to limit the impact of potential attacks.
Regularly review and update security configurations.

Patching and Updates

Apply security patches provided by Insteon promptly to mitigate the vulnerability.