CVE-2018-3925 : What You Need to Know
Learn about CVE-2018-3925, a high-severity buffer overflow vulnerability in Samsung SmartThings Hub STH-ETH-250 devices. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability has been identified in the communication between the video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 devices (firmware version 0.20.17) and remote video-host servers, leading to a buffer overflow.
Understanding CVE-2018-3925
This CVE involves a buffer overflow vulnerability in Samsung SmartThings Hub STH-ETH-250 devices.
What is CVE-2018-3925?
- The vulnerability allows an attacker to trigger a heap-based buffer overflow by mishandling the AWSELB cookie during communication.
- Attackers impersonating remote HTTP servers can exploit this vulnerability.
The Impact of CVE-2018-3925
- CVSS Score: 8.5 (High)
- Severity: High
- Attack Vector: Network
- Confidentiality, Integrity, and Availability Impact: High
- Privileges Required: Low
- Scope: Changed
- Attack Complexity: High
- User Interaction: None
Technical Details of CVE-2018-3925
This section provides detailed technical information about the vulnerability.
Vulnerability Description
- The video-core process insecurely handles the AWSELB cookie, leading to a heap-based buffer overflow.
Affected Systems and Versions
- Affected Product: SmartThings Hub STH-ETH-250
- Vendor: Samsung
- Affected Version: Firmware version 0.20.17
Exploitation Mechanism
- Attackers can exploit the vulnerability by impersonating remote HTTP servers during communication.
Mitigation and Prevention
Protecting systems from CVE-2018-3925 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the firmware to a patched version.
- Monitor network traffic for any suspicious activities.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update and patch all software and firmware.
- Conduct security assessments and penetration testing to identify vulnerabilities.
- Educate users and employees about safe browsing habits and phishing awareness.
Patching and Updates
- Samsung may release patches to address the vulnerability. Stay informed about security updates and apply them promptly.