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cve[email protected]CVE-2018-3832
HistoryAug 23, 2018 - 2:29 p.m.

CVE-2018-3832

2018-08-2314:29:00
CWE-434
web.nvd.nist.gov
33
cve-2018-3832
insteon hub
firmware update vulnerability
unauthorized access
http server
mpfs binary
firmware upload

9 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

8.8 High

AI Score

Confidence

High

8.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:S/C:C/I:C/A:C

0.001 Low

EPSS

Percentile

41.4%

An exploitable firmware update vulnerability exists in Insteon Hub running firmware version 1013. The HTTP server allows for uploading arbitrary MPFS binaries that could be modified to enable access to hidden resources which allow for uploading unsigned firmware images to the device. To trigger this vulnerability, an attacker can upload an MPFS binary via the ‘/mpfsupload’ HTTP form and later on upload the firmware via a POST request to ‘firmware.htm’.

9 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

8.8 High

AI Score

Confidence

High

8.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:S/C:C/I:C/A:C

0.001 Low

EPSS

Percentile

41.4%

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