VULNERABILITY INTELLIGENCE

CVE-2018-5455

CVSS score9.8 CRITICAL

EPSS probability1.56%

CISA KEVNot currently listed

Published2018-03-05

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. The application allows a cookie parameter to consist of only digits, allowing an attacker to perform a brute force attack bypassing authentication and gaining access to device functions.

Weakness classification

CWE-287: Improper Authentication
CWE-565: Reliance on Cookies without Validation and Integrity Checking

Primary references

ics-cert@hq.dhs.gov — Patch, Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory, US Government Resource