CVE-2017-16309 : Exploit Details and Defense Strategies

CVE-2017-16309 is a vulnerability affecting Insteon Hub firmware version 1012, leading to buffer overflow vulnerabilities in its PubNub message handler. Attackers can exploit this issue by sending specially crafted commands through the PubNub service, potentially causing a stack-based buffer overflow.

Understanding CVE-2017-16309

This CVE identifies a critical security flaw in the Insteon Hub firmware version 1012, allowing attackers to trigger buffer overflows through the PubNub message handler.

What is CVE-2017-16309?

The vulnerability in the Insteon Hub firmware version 1012 enables attackers to execute a stack-based buffer overflow by sending specific commands via the PubNub service. This overflow can lead to the overwriting of arbitrary data.

The Impact of CVE-2017-16309

The impact of this vulnerability is rated as HIGH, with a CVSS base score of 8.5. It poses a significant risk to confidentiality, integrity, and availability, making it crucial to address promptly.

Technical Details of CVE-2017-16309

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability arises from a buffer overflow in the PubNub message handler of the Insteon Hub firmware version 1012. By exploiting this flaw, attackers can overwrite data by sending crafted commands.

Affected Systems and Versions

Vendor: Insteon
Product: Hub
Affected Version: Not specified

Exploitation Mechanism

Attackers send specially crafted commands through the PubNub service to trigger a stack-based buffer overflow.
An authenticated HTTP request is required to exploit this vulnerability.
The overflow occurs in the cmd sn_exw function at memory address 0x9d01b3d8.
The buffer overflow happens when the value of the

d

key is copied to a buffer with a size limit of 100 bytes.

Mitigation and Prevention

Protecting systems from CVE-2017-16309 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 vulnerabilities.
Monitor network traffic for any suspicious activities that could indicate an ongoing exploit attempt.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Stay informed about security advisories from Insteon and apply patches promptly to mitigate risks.