CVE-2017-16293 : Security Advisory and Response

CVE-2017-16293 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, resulting in a stack-based buffer overflow.

Understanding CVE-2017-16293

This CVE identifies a critical vulnerability in the Insteon Hub firmware version 1012, allowing attackers to execute a stack-based buffer overflow attack.

What is CVE-2017-16293?

The vulnerability in the Insteon Hub firmware version 1012 enables attackers to trigger a stack-based buffer overflow by sending specially crafted commands through the PubNub service.

The Impact of CVE-2017-16293

The exploitation of this vulnerability can lead to unauthorized manipulation of data, potentially compromising the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2017-16293

This section provides detailed technical information about the CVE-2017-16293 vulnerability.

Vulnerability Description

The vulnerability arises in the PubNub message handler for the "cc" channel in the Insteon Hub firmware version 1012, allowing attackers to perform a stack-based buffer overflow.

Affected Systems and Versions

Vendor: Insteon
Product: Hub
Affected Version: Not specified

Exploitation Mechanism

Attackers exploit the vulnerability by sending carefully crafted commands through the PubNub service.
The specific vulnerability occurs in the cmd s_schd function at 0x9d01a010, where the

grp

key value is copied to a 16-byte buffer using

strcpy

at

$sp+0x280

.
Input longer than 16 bytes triggers the buffer overflow.

Mitigation and Prevention

Protecting systems from CVE-2017-16293 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the Insteon Hub firmware to a patched version that addresses the buffer overflow vulnerability.
Monitor network traffic for any suspicious activities that could indicate an ongoing attack.

Long-Term Security Practices

Implement network segmentation to isolate critical devices from potential attackers.
Regularly review and update security configurations to mitigate future vulnerabilities.

Patching and Updates

Apply security patches provided by Insteon to fix the buffer overflow vulnerability in the Hub firmware.