CVE-2017-16334 : Exploit Details and Defense Strategies

CVE-2017-16334 is a vulnerability affecting Insteon Hub firmware version 1012, allowing attackers to trigger a stack-based buffer overflow by sending crafted commands through the PubNub service.

Understanding CVE-2017-16334

This CVE identifies a critical vulnerability in the Insteon Hub firmware version 1012, potentially leading to arbitrary data overwriting through a stack-based buffer overflow.

What is CVE-2017-16334?

The vulnerability in the PubNub message handler for the 'cc' channel of Insteon Hub firmware version 1012 allows attackers to exploit a stack-based buffer overflow by sending specific commands through the PubNub service.

The Impact of CVE-2017-16334

The vulnerability can result in a high impact on confidentiality, integrity, and availability of affected systems, with a CVSS base score of 8.5 (High severity).

Technical Details of CVE-2017-16334

Vulnerability Description

Exploitable vulnerability in the 'cmd s_event' function at memory address 0x9d01edb8
Buffer overflow occurs when copying data to a 244-byte buffer, leading to arbitrary data overwriting

Affected Systems and Versions

Insteon Hub with firmware version 1012

Exploitation Mechanism

Attacker crafts specific commands and sends them through the PubNub service
Requires sending an authenticated HTTP request

Mitigation and Prevention

Immediate Steps to Take

Update Insteon Hub firmware to a patched version
Implement network segmentation to limit exposure

Long-Term Security Practices

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

Patching and Updates

Apply vendor-supplied patches promptly to address the vulnerability