CVE-2018-3911 Explained : Impact and Mitigation
Learn about CVE-2018-3911 affecting Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. Discover the impact, technical details, and mitigation steps.
A vulnerability exists in the remote servers of Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17, allowing exploitation through HTTP header injection.
Understanding CVE-2018-3911
This CVE involves a security issue in Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17, potentially leading to unauthorized access.
What is CVE-2018-3911?
The vulnerability in the remote servers of Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17 enables attackers to manipulate HTTP headers, potentially compromising the system's integrity.
The Impact of CVE-2018-3911
The vulnerability poses a high severity risk with a CVSS base score of 8.6, allowing attackers to send malicious HTTP requests and potentially gain unauthorized access to the internal video-core process.
Technical Details of CVE-2018-3911
This section provides detailed technical insights into the CVE.
Vulnerability Description
The hubCore process on port 39500 forwards unauthenticated messages to SmartThings' servers, which handle JSON messages insecurely, leading to partially controlled requests towards the internal video-core process.
Affected Systems and Versions
- Product: Samsung SmartThings Hub STH-ETH-250
- Firmware Version: 0.20.17
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Integrity Impact: High
- Scope: Changed
- Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Mitigation and Prevention
Protecting systems from CVE-2018-3911 is crucial to prevent unauthorized access and data breaches.
Immediate Steps to Take
- Update the firmware to the latest version provided by Samsung.
- Monitor network traffic for any suspicious activity.
- Implement strong access controls and authentication mechanisms.
Long-Term Security Practices
- Regularly conduct security assessments and penetration testing.
- Educate users and employees on safe browsing habits and security best practices.
Patching and Updates
- Stay informed about security updates and patches released by Samsung.