CVE-2018-3834

An exploitable permanent denial of service vulnerability exists in Insteon Hub running firmware version 1013

High · published August 2, 2018

CVSS v3.0
8.7
EPSS
1%
Percentile
42.5
In the wild
Unconfirmed
What it is

An exploitable permanent denial of service 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 kind of firmware image that is going to be installed and thus allows for flashing any signed firmware into any MCU. Since the device contains different and incompatible MCUs, flashing one firmware to the wrong MCU will result in a permanent brick condition. To trigger this vulnerability, an attacker needs to impersonate the remote server "cache.insteon.com" and serve a signed firmware image.

The record
Technical detail
CVSS v3.0
8.7 · HIGH
Vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00512 · 42.5th percentile
Published
2018-08-02T19:00Z
EPSS history
Timeline
  • 02 AUG 19:00Z
    An exploitable permanent denial of service vulnerability exists in Insteon Hub running firmware version 1013
    cvelistv5