What is CVE-2018-3833?

CVE-2018-3833 is a high-severity vulnerability in Insteon Hub 2245-222. CVSS score: 7.5/10. Published 2018-08-23.

How severe is CVE-2018-3833?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Insteon Hub 2245-222

CVE-2018-3833

An exploitable firmware downgrade vulnerability exists in Insteon Hub running firmware version 1013. The firmware upgrade functionality, triggered via PubNub, retrieves signed firmware binaries using plain HTTP requests. The device doesn't check the firmware version that is going to be installed and thus allows for flashing older firmware images. To trigger this vulnerability, an attacker needs to impersonate the remote server 'cache.insteon.com' and serve any signed firmware image.

EPSS: 0.011 (62.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Insteon Hub_2245-222
Insteon Hub_2245-222_firmware — versions 1013
Insteon — versions Insteon Hub 2245-222 - Firmware version 1013

References

talos-cna@cisco.com (Technical Description, Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-3833?: CVE-2018-3833 is a high-severity vulnerability in Insteon Hub 2245-222. CVSS score: 7.5/10. Published 2018-08-23.
How severe is CVE-2018-3833?: High severity. CVSS v3 base score is 7.5 out of 10.