CVE-2018-3834
Last modified
CVE-2018-3834 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. 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. EPSS estimates a 0.51% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Insteon | Hub Firmware | 1013 |
References
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0513Exploit, Technical Description, Third Party Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0513Exploit, Technical Description, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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