CVE-2017-16335 : What You Need to Know

CVE-2017-16335 was published by Talos on January 11, 2023. It involves buffer overflow vulnerabilities in the PubNub message handler for the "cc" channel of Insteon Hub.

Understanding CVE-2017-16335

This CVE identifies stack-based buffer overflow vulnerabilities in the Insteon Hub's firmware version 1012.

What is CVE-2017-16335?

The vulnerability allows attackers to trigger a stack-based buffer overflow by sending specially crafted commands via the PubNub service, potentially leading to arbitrary data overwrites.

The Impact of CVE-2017-16335

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-2017-16335

The technical details of this CVE are as follows:

Vulnerability Description

Exploitable buffer overflow vulnerabilities in the PubNub message handler for the "cc" channel of Insteon Hub
Triggered by sending specially crafted commands via the PubNub service

Affected Systems and Versions

Vendor: Insteon
Product: Hub
Affected Version: Not specified

Exploitation Mechanism

Attacker sends authenticated HTTP request
Vulnerability triggered in the cmd s_event_var function at memory address 0x9d01ee70
Buffer overflow occurs when the value corresponding to the

s_offset

key is copied to the buffer at

$sp+0x2b0

Buffer limited to 32 bytes, overflow caused by sending longer data

Mitigation and Prevention

To address CVE-2017-16335, consider the following steps:

Immediate Steps to Take

Apply vendor patches or updates promptly
Monitor network traffic for any suspicious activities

Long-Term Security Practices

Regularly update firmware and software to the latest versions
Implement network segmentation to limit the impact of potential attacks

Patching and Updates

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