CVE-2020-27149 Missing authorization in NPort IA5000A Series with web console enabled

Medium 6.5 Published 14 May 2021 Updated 4 Aug 2024

A user with Read Only privileges can modify device configuration via the web console due to missing authorization checks.

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

What is CVE-2020-27149?

CVE-2020-27149 is a medium-severity missing authorization vulnerability in NPort IA5000A Series with web console enabled, published on 14 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

By exploiting a vulnerability in NPort IA5150A/IA5250A Series before version 1.5, a user with “Read Only” privilege level can send requests via the web console to have the device’s configuration changed.

Which versions are affected by CVE-2020-27149?

It affects 3 products.

Products include Moxa Nport Ia5150a Firmware, Moxa Nport Ia5250a Firmware, Moxa Nport Ia5450a Firmware.

How do I fix CVE-2020-27149?

No fix has been published for CVE-2020-27149 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-2020-27149 being exploited?

There is no known exploitation of CVE-2020-27149 in the wild and no public exploit code.

Sources

Also known as GHSA-6q59-xh2r-73jw.