CVE-2022-31269 — Nortek Linear eMerge E3-Series devices through 0

Nortek Linear eMerge E3-Series devices through 0.32-09c place admin credentials in /test.txt that allow an attacker to open a building's doors. (This occurs in situations where the CVE-2019-7271 default credentials have been changed.)

01What is this vulnerability?

Nortek Linear eMerge E3-Series devices through 0.32-09c place admin credentials in /test.txt that allow an attacker to open a building's doors. (This occurs in situations where the CVE-2019-7271 default credentials have been changed.)

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

08Timeline

• Published: 2022-08-25T21:59:52.000Z
• Last modified: 2024-08-03T07:11:39.944Z

09References

• eg.linkedin.com — https://eg.linkedin.com/in/omar-1-hashem
• www.nortekcontrol.com — https://www.nortekcontrol.com/access-control/
• packetstormsecurity.com — http://packetstormsecurity.com/files/167990/Nortek-Linear-eMerge-E3-Series-Crede…
• gist.github.com — https://gist.github.com/omarhashem123/71ec9223e90ea76a76096d777d9b945c