CVE-2021-42540: Emerson WirelessHART Gateway

Published Oct 22, 2021
·
Updated

The affected product is vulnerable to a unsanitized extract folder for system configuration. A low-privileged user can leverage this logic to overwrite the settings and other key functionality.

Affected Software

15 affected componentsFixes available
All of the following
Emerson Wireless 1410 Gateway Firmware<4.7.94
Emerson Wireless 1410 Gateway
All of the following
Emerson Wireless 1410d Gateway Firmware<4.7.94
Emerson Wireless 1410d Gateway
All of the following
Emerson Wireless 1420 Gateway Firmware<4.7.94
Emerson Wireless 1420 Gateway
Emerson Wireless 1410 Gateway Firmware<4.7.94
Emerson Wireless 1410 Gateway
Emerson Wireless 1410d Gateway Firmware<4.7.94
Emerson Wireless 1410d Gateway
Emerson Wireless 1420 Gateway Firmware<4.7.94
Emerson Wireless 1420 Gateway
Emerson WirelessHART 1410 Gateway<4.7.94
4.7.94
Emerson WirelessHART 1410D Gateway<4.7.94
4.7.94
Emerson WirelessHART 1420 Gateway<4.7.94
4.7.94

Remediation

Patch Available

https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02

Information

Emerson recommends upgrading to v4.7.105 to address these vulnerabilities. Users can visit the Emerson Gate Firmware site for and download instructions. If affected users do not yet have a free Guardian account, please see the updated Emerson Gateway Firmware download process by following the link above and viewing the download guide.

Event History

Oct 22, 2021
CVE Published
via MITRE·01:23 PM
Data Sourced
via MITRE·01:23 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·02:15 PM
RemedyDescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2021-42540?

CVE-2021-42540 is a vulnerability where the affected product has an unsanitized extract folder for system configuration, allowing a low-privileged user to overwrite settings and key functionality.

2

What is the severity of CVE-2021-42540?

CVE-2021-42540 has a severity score of 8.8 (high).

3

Which software versions are affected by CVE-2021-42540?

Versions up to and excluding 4.7.94 of Emerson Wireless 1410 Gateway Firmware and Emerson Wireless 1410d Gateway Firmware are affected.

4

How can a low-privileged user exploit CVE-2021-42540?

A low-privileged user can exploit CVE-2021-42540 by leveraging the unsanitized extract folder for system configuration to overwrite settings and key functionality.

5

Where can I find more information about CVE-2021-42540?

You can find more information about CVE-2021-42540 in the advisory issued by the United States Computer Emergency Readiness Team (US-CERT).

Company

Resources

Contact

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