CVE-2018-11426 Auth bypass in n/a

Critical 9.8 Published 3 Jul 2019 Updated 5 Aug 2024

Attackers can brute force weak cookie parameters to bypass authentication and access the web interface of Moxa OnCell routers.

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-2018-11426?

CVE-2018-11426 is a critical authentication bypass 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

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.

Weakness: CWE-287

Which versions are affected by CVE-2018-11426?

It affects 2 products.

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

How do I fix CVE-2018-11426?

No fix has been published for CVE-2018-11426 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2018-11426 being exploited?

There is no known exploitation of CVE-2018-11426 in the wild and no public exploit code.

Sources

Also known as GHSA-qg29-gw69-6h3h.