CVE-2021-42540: Emerson WirelessHART Gateway
First published: Fri 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.
Credit: ics-cert@hq.dhs.gov ics-cert@hq.dhs.gov
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 |
| All of | ||
| Emerson Wireless 1410 Gateway Firmware | <4.7.94 | |
| Emerson Wireless 1410 Gateway | ||
| All of | ||
| Emerson Wireless 1410d Gateway Firmware | <4.7.94 | |
| Emerson Wireless 1410d Gateway | ||
| All of | ||
| Emerson Wireless 1420 Gateway Firmware | <4.7.94 | |
| Emerson Wireless 1420 Gateway |
Remedy
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.
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
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.
What is the severity of CVE-2021-42540?
CVE-2021-42540 has a severity score of 8.8 (high).
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.
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.
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).
- collector/nvd-index
- agent/type
- agent/references
- agent/weakness
- agent/description
- collector/ics-cert-advisory
- source/ICS
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/severity
- agent/remedy
- agent/title
- collector/mitre-cve
- source/MITRE
- agent/first-publish-date
- collector/nvd-api
- source/NVD
- agent/last-modified-date
- agent/author
- agent/tags
- agent/event
- agent/softwarecombine
- agent/trending
- vendor/emerson
- canonical/emerson wireless 1410 gateway firmware
- canonical/emerson wireless 1410 gateway
- canonical/emerson wireless 1410d gateway firmware
- canonical/emerson wireless 1410d gateway
- canonical/emerson wireless 1420 gateway firmware
- canonical/emerson wireless 1420 gateway
- canonical/emerson wirelesshart 1410 gateway
- canonical/emerson wirelesshart 1410d gateway
- canonical/emerson wirelesshart 1420 gateway