CVE-2017-16255 : What You Need to Know
Learn about CVE-2017-16255, a high-severity buffer overflow vulnerability in Insteon Hub 2245-222 - Firmware version 1012, allowing attackers to overwrite data. Find mitigation steps and prevention measures.
Insteon Hub 2245-222 - Firmware version 1012 is vulnerable to a buffer overflow via the PubNub message handler, allowing attackers to trigger arbitrary data overwrites.
Understanding CVE-2017-16255
This CVE involves a high-severity buffer overflow vulnerability in the Insteon Hub 2245-222 - Firmware version 1012.
What is CVE-2017-16255?
A buffer overflow vulnerability in the PubNub message handler of Insteon Hub 2245-222 - Firmware version 1012 allows attackers to overwrite data by sending crafted commands via the PubNub service.
The Impact of CVE-2017-16255
- CVSS Base Score: 8.5 (High)
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Scope: Changed
- User Interaction: None
Technical Details of CVE-2017-16255
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows for a stack-based buffer overflow, triggered by sending specially crafted commands through the PubNub service.
Affected Systems and Versions
- Product: Insteon
- Version: Insteon Hub 2245-222 - Firmware version 1012
Exploitation Mechanism
An attacker can exploit this vulnerability by sending an authenticated HTTP request where the value for the cmd1 key is copied to a buffer, leading to a buffer overflow.
Mitigation and Prevention
Protecting systems from CVE-2017-16255 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor network traffic for any suspicious activities.
- Restrict access to vulnerable systems.
Long-Term Security Practices
- Regularly update firmware and software to the latest versions.
- Conduct security assessments and penetration testing.
- Implement network segmentation to contain potential attacks.
Patching and Updates
Ensure that all systems running Insteon Hub 2245-222 - Firmware version 1012 are updated with the latest patches to mitigate the buffer overflow vulnerability.