CVE-2019-9750 : What You Need to Know

IoTivity until version 1.3.1 is vulnerable to Distributed Denial of Service attacks due to mishandling in constructing a response, allowing for source IP address spoofing and UDP-based traffic amplification.

Understanding CVE-2019-9750

IoTivity through version 1.3.1 is susceptible to a specific type of DDoS attack that can significantly amplify traffic.

What is CVE-2019-9750?

Vulnerability in IoTivity up to version 1.3.1
Allows for Distributed Denial of Service attacks
Exploits CoAP server interface using source IP address spoofing and UDP-based traffic amplification
Results in reflected traffic six times larger than spoofed requests
Arises from mishandling in constructing a response of "4.01 Unauthorized"

The Impact of CVE-2019-9750

Enables attackers to disrupt IoTivity systems through DDoS attacks
Can lead to service unavailability and potential system crashes

Technical Details of CVE-2019-9750

IoTivity vulnerability specifics and affected systems.

Vulnerability Description

Vulnerability in CoAP server interface of IoTivity
Exploitable through source IP address spoofing and UDP-based traffic amplification

Affected Systems and Versions

IoTivity versions up to 1.3.1
No specific product or vendor mentioned

Exploitation Mechanism

Attackers exploit the mishandling of constructing a response of "4.01 Unauthorized"
Utilize source IP address spoofing and UDP-based traffic amplification

Mitigation and Prevention

Protecting systems from CVE-2019-9750.

Immediate Steps to Take

Implement network-level protections against IP address spoofing
Monitor and filter UDP-based traffic to detect and prevent amplification attacks

Long-Term Security Practices

Regularly update IoTivity to the latest secure version
Conduct security assessments and penetration testing to identify vulnerabilities

Patching and Updates

As the vendor has no plans to address the vulnerability, consider migrating to IoTivity Lite for enhanced security