CVE-2017-16291 Explained : Impact and Mitigation
Learn about CVE-2017-16291, a critical vulnerability in Insteon Hub firmware allowing stack-based buffer overflow. Understand the impact, affected systems, exploitation, and mitigation steps.
CVE-2017-16291 is a vulnerability in the message handler of the PubNub service for the "cc" channel of Insteon Hub firmware version 1012. This vulnerability allows for a stack-based buffer overflow, potentially leading to arbitrary data overwriting.
Understanding CVE-2017-16291
This CVE identifies a critical vulnerability in the Insteon Hub firmware that can be exploited through specific commands sent via the PubNub service.
What is CVE-2017-16291?
The vulnerability involves buffer overflow weaknesses in the message handler of the PubNub service for the "cc" channel of Insteon Hub firmware version 1012. An attacker can exploit this by sending crafted commands through an authenticated HTTP request, leading to arbitrary data overwriting.
The Impact of CVE-2017-16291
The vulnerability has a CVSS base score of 8.5, indicating a high severity level. It can result in significant confidentiality, integrity, and availability impacts on affected systems.
Technical Details of CVE-2017-16291
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability allows for a stack-based buffer overflow in the message handler of the PubNub service for the "cc" channel of Insteon Hub firmware version 1012. Specifically, the issue occurs in the "cmd s_sun" function at memory address 0x9d019854.
Affected Systems and Versions
- Vendor: Insteon
- Product: Hub
- Versions: Not specified
Exploitation Mechanism
- Attacker sends specific commands via the PubNub service
- Authenticated HTTP request required
- Buffer overflow occurs in the "cmd s_sun" function at memory address 0x9d019854
- Buffer size fixed at 100 bytes
Mitigation and Prevention
Protecting systems from CVE-2017-16291 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor patches or updates promptly
- Monitor network traffic for any suspicious activities
- Restrict access to vulnerable services
Long-Term Security Practices
- Regularly update firmware and software
- Conduct security assessments and penetration testing
- Implement network segmentation and access controls
Patching and Updates
- Check for security advisories from Insteon
- Apply recommended patches or firmware updates to address the vulnerability