CVE-2018-11422 Missing authorization in n/a

Critical 9.8 Published 3 Jul 2019 Updated 5 Aug 2024

Attackers can intercept traffic and execute arbitrary commands like firmware upgrades or reboots on Moxa OnCell routers without authentication.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-11422?

CVE-2018-11422 is a critical missing authorization vulnerability in n/a, published on 3 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Moxa OnCell G3100-HSPA Series version 1.6 Build 17100315 and prior use a proprietary configuration protocol that does not provide confidentiality, integrity, and authenticity security controls. All information is sent in plain text, and can be intercepted and modified. Any commands (including device reboot, configuration download or upload, or firmware upgrade) are accepted and executed by the device without authentication.

Weakness: CWE-319

Which versions are affected by CVE-2018-11422?

It affects 2 products.

Products include Moxa Oncell G3150-Hspa-T Firmware, Moxa Oncell G3150-Hspa Firmware.

How do I fix CVE-2018-11422?

No fix has been published for CVE-2018-11422 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2018-11422 being exploited?

There is no known exploitation of CVE-2018-11422 in the wild and no public exploit code.

Sources

Also known as GHSA-j89h-7gpj-6wwq.