PT-2018-16969 · Moxa · Moxa Oncell G3100-Hspa Series

Eugenie Potseluevskaya + 2 · Published 2018-03-05 · Updated 2019-10-09 · CVE-2018-5455

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Moxa OnCell G3100-HSPA Series versions 1.4 Build 16062919 and prior

Description A Reliance on Cookies without Validation and Integrity Checking issue allows an attacker to bypass authentication by performing a brute force attack on a cookie parameter that can consist of only digits, gaining access to device functions.

Recommendations For Moxa OnCell G3100-HSPA Series versions 1.4 Build 16062919 and prior, consider restricting access to the device until a fix is available, and avoid using the cookie parameter for authentication purposes. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Authentication

Weakness Enumeration

CWE-287

CWE-565

Related Identifiers

CVE-2018-5455

Affected Products

Moxa Oncell G3100-Hspa Series

References · 3

• https://osv.dev/vulnerability/CVE-2018-5455 · Vendor Advisory
• https://ics-cert.us-cert.gov/advisories/ICSA-18-060-02 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2018-5455 · Security Note