CVE-2018-19983 : Security Advisory and Response
Discover the impact of CVE-2018-19983, a vulnerability in Sigma Design Z-Wave S0 through S2 devices allowing DoS attacks. Learn about affected systems, exploitation, and mitigation steps.
A vulnerability has been found on Sigma Design Z-Wave S0 through S2 devices that can be exploited by launching a DoS attack on the Z-Wave S0 Security version product.
Understanding CVE-2018-19983
What is CVE-2018-19983?
This CVE identifies a vulnerability in Sigma Design Z-Wave S0 through S2 devices that allows an attacker to conduct a DoS attack by continuously sending fragmented "Nonce Get" frames.
The Impact of CVE-2018-19983
The vulnerability enables attackers to disrupt the normal functioning of Z-Wave S0 Security version products, potentially leading to service denial and security breaches.
Technical Details of CVE-2018-19983
Vulnerability Description
The vulnerability allows attackers to disrupt Z-Wave S0 Security version products by continuously sending fragmented "Nonce Get" frames.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: Not applicable
Exploitation Mechanism
- Attackers prepare a Z-Wave frame-transmission program
- Conduct a DoS attack by sending divided "Nonce Get" frames
- Exploit the behavior of S0 security version nodes in generating and discarding nonce values
Mitigation and Prevention
Immediate Steps to Take
- Implement network segmentation to isolate vulnerable devices
- Monitor network traffic for unusual patterns
- Update firmware to patched versions
Long-Term Security Practices
- Regularly update and patch all Z-Wave devices
- Conduct security assessments and penetration testing
Patching and Updates
- Apply security patches provided by Sigma Design