CVE-2017-16303 : Security Advisory and Response

CVE-2017-16303 is a vulnerability in the PubNub message handler for the "cc" channel of Insteon Hub with firmware version 1012, allowing for buffer overflow attacks.

Understanding CVE-2017-16303

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

What is CVE-2017-16303?

The vulnerability allows attackers to trigger a stack-based buffer overflow by sending crafted commands through the PubNub service.

The Impact of CVE-2017-16303

The execution of malicious commands can lead to arbitrary data overwriting, potentially compromising the system's integrity, confidentiality, and availability.

Technical Details of CVE-2017-16303

The vulnerability specifics and affected systems.

Vulnerability Description

Exploitable buffer overflow vulnerabilities in the PubNub message handler for the "cc" channel of Insteon Hub with firmware version 1012.
Attacker must send an authenticated HTTP request to exploit.
Buffer overflow occurs in the cmd sn_ex function, potentially leading to arbitrary data overwriting.

Affected Systems and Versions

Vendor: Insteon
Product: Hub
Versions: Not specified

Exploitation Mechanism

Crafted commands through the PubNub service trigger a stack-based buffer overflow.
Buffer overflow occurs in the cmd sn_ex function at 0x9d01addc.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2017-16303.

Immediate Steps to Take

Apply vendor patches and updates promptly.
Restrict network access to vulnerable systems.
Monitor and analyze network traffic for signs of exploitation.

Long-Term Security Practices

Regularly update firmware and software to address security vulnerabilities.
Implement network segmentation to contain potential attacks.

Patching and Updates

Stay informed about security advisories from the vendor.
Apply patches and updates as soon as they are available.