CVE-2018-3834

 

Published at: - 02-08-2018 09:29

Last modified: - 19-04-2022 08:15

Total changes: - 2

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

 

Verification logic

 

Reference

• https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0513

 

Keywords

NVD

 

CVE-2018-3834

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures