CVE-2018-3834 : Exploit Details and Defense Strategies
Discover the impact of CVE-2018-3834, a high-severity vulnerability in Insteon Hub firmware version 1013, allowing for a permanent denial of service attack. Learn about affected systems, exploitation details, and mitigation steps.
A vulnerability has been discovered in the Insteon Hub firmware version 1013 that can lead to a permanent denial of service attack. The vulnerability arises during the firmware upgrade process, allowing the installation of any signed firmware onto incompatible microcontroller units (MCUs).
Understanding CVE-2018-3834
This CVE involves an improper access control issue in the Insteon Hub firmware version 1013.
What is CVE-2018-3834?
The vulnerability in the Insteon Hub firmware version 1013 allows attackers to exploit the firmware upgrade feature, potentially rendering the device permanently inoperable.
The Impact of CVE-2018-3834
The vulnerability has a CVSS base score of 8.7, indicating a high severity level. It can result in a permanent denial of service attack on affected devices.
Technical Details of CVE-2018-3834
The technical aspects of the vulnerability in the Insteon Hub firmware version 1013.
Vulnerability Description
- The vulnerability allows the installation of any signed firmware onto incompatible MCUs, leading to a permanent denial of service condition.
Affected Systems and Versions
- Product: Insteon
- Vendor: Insteon
- Versions Affected: Insteon Hub 2245-222 - Firmware version 1013
Exploitation Mechanism
- Attack Complexity: High
- Attack Vector: Network
- Availability Impact: High
- Integrity Impact: High
- Privileges Required: None
- Scope: Changed
- User Interaction: None
Mitigation and Prevention
Steps to mitigate and prevent the exploitation of CVE-2018-3834.
Immediate Steps to Take
- Disable remote firmware upgrades on the Insteon Hub.
- Implement network segmentation to limit access to vulnerable devices.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update firmware with the latest patches and security enhancements.
- Conduct security assessments to identify and address vulnerabilities proactively.
Patching and Updates
- Apply firmware updates provided by Insteon to address the vulnerability and enhance device security.