Improper input validation in Radiothermostat Ct50

CVE-2018-11315

The Local HTTP API in Radio Thermostat CT50 and CT80 1.04.84 and below products allows unauthorized access via a DNS rebinding attack. This can result in remote device temperature control, as demonstrated by a tstat t_heat request that accesses a device purchased in the Spring of 2018, and sets a home's target temperature to 95 degrees Fahrenheit. This vulnerability might be described as an addendum to CVE-2013-4860.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.008 (52.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-11315?
CVE-2018-11315 is a medium-severity vulnerability in Radiothermostat Ct50, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2018-05-20.
How severe is CVE-2018-11315?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2018-11315 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.