What is CVE-2022-31483?

CVE-2022-31483 is a critical-severity vulnerability in Carrier Lenels2 Lnl-4420, classified under Path Traversal. CVSS score: 9.1/10. Published 2022-06-06.

How severe is CVE-2022-31483?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Path Traversal in Carrier Lenels2 Lnl-4420

CVE-2022-31483

An authenticated attacker can upload a file with a filename including “..” and “/” to achieve the ability to upload the desired file anywhere on the filesystem. This vulnerability impacts products based on HID Mercury Intelligent Controllers LP1501, LP1502, LP2500, LP4502, and EP4502 which contain firmware versions prior to 1.271. This allows a malicious actor to overwrite sensitive system files and install a startup service to gain remote access to the underlaying Linux operating system with root privileges.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.016 (73.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-22 — Path Traversal

References

productsecurity@carrier.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2022-31483?: CVE-2022-31483 is a critical-severity vulnerability in Carrier Lenels2 Lnl-4420, classified under Path Traversal. CVSS score: 9.1/10. Published 2022-06-06.
How severe is CVE-2022-31483?: Critical severity. CVSS v3 base score is 9.1 out of 10.