PT-2019-4714 · Moxa · Moxa Oncell G3100-Hspa Series

Eugenie Potseluevskaya · Published 2019-07-03 · Updated 2019-07-10 · CVE-2018-11426

Positive Technologies (AI Summary)

CVSS v3.1

10

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 version 1.4 Build 16062919 and prior

Description The issue is related to a weak Cookie parameter used in the web application, which can be brute-forced by an attacker to bypass authentication. This allows access to the web interface, enabling the use of all its functions except for password change. The vulnerability is associated with deficiencies in the authentication procedure, potentially allowing a remote attacker to gain access to the device with root privileges.

Recommendations For Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior, consider temporarily restricting access to the web interface until a patch is available. As a mitigation measure, avoid using the weak Cookie parameter in the web application.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

BDU:2020-01243

CVE-2018-11426

Affected Products

Moxa Oncell G3100-Hspa Series

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2018-11426 · Security Note
• https://bdu.fstec.ru/vul/2020-01243 · Security Note
• https://osv.dev/vulnerability/CVE-2018-11426 · Vendor Advisory
• https://github.com/klsecservices/Advisories/blob/master/KL-MOXA-2018-105.md · Note
• https://t.me/cibsecurity/5336 · Telegram Post
• https://moxa.com/en/support/support/security-advisory/oncell-g3100-hspa-oncell-g3470a-lte-cellular-gateway-vulnerabilities · Note