Resource exhaustion in Iotivity
CVE-2019-9750
In IoTivity through 1.3.1, the CoAP server interface can be used for Distributed Denial of Service attacks using source IP address spoofing and UDP-based traffic amplification. The reflected traffic is 6 times bigger than spoofed requests. This occurs because the construction of a "4.01 Unauthorized" response is mishandled. NOTE: the vendor states "While this is an interesting attack, there is no plan for maintainer to fix, as we are migrating to IoTivity Lite."
Vulnerability class: DoS (Denial of Service)
EPSS: 0.013 (68.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
Affected products
- Iotivity
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2019-9750?
- CVE-2019-9750 is a critical-severity vulnerability in Iotivity, classified under Uncontrolled Resource Consumption. CVSS score: 9.1/10. Published 2019-03-13.
- How severe is CVE-2019-9750?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2019-9750 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.