Auth bypass in Moxa Oncell G3150-Hspa

CVE-2018-11426

A weak Cookie parameter is used in the web application of Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. An attacker can brute force parameters required to bypass authentication and access the web interface to use all its functions except for password change.

Vulnerability class: Broken Authentication

EPSS: 0.018 (76.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-11426?
CVE-2018-11426 is a critical-severity vulnerability in Moxa Oncell G3150-Hspa, classified under Improper Authentication. CVSS score: 9.8/10. Published 2019-07-03.
How severe is CVE-2018-11426?
Critical severity. CVSS v3 base score is 9.8 out of 10.