CVE-2018-3833

2018-06-1900:00:00

talos

www.cve.org

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.005 Low

EPSS

Percentile

77.0%

JSON

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.

CNA Affected

[
  {
    "product": "Insteon",
    "vendor": "Insteon",
    "versions": [
      {
        "status": "affected",
        "version": "Insteon Hub 2245-222 - Firmware version 1013"
      }
    ]
  }
]