CVE-2018-11315 Missing authorization in n/a

Medium 6.5 Published Updated

Attackers can bypass authentication via DNS rebinding to remotely control smart thermostat temperatures, affecting IoT device security.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-11315?

CVE-2018-11315 is a medium-severity missing authorization vulnerability in n/a, published on 20 May 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-20

Which versions are affected by CVE-2018-11315?

It affects 2 products.

Products include Radiothermostat Ct50 Firmware, Radiothermostat Ct80 Firmware.

How do I fix CVE-2018-11315?

No fix has been published for CVE-2018-11315 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2018-11315 being exploited?

There is no known exploitation of CVE-2018-11315 in the wild and no public exploit code.

Sources

Also known as GHSA-77cg-9m32-vxjv.

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