CVE-2020-10920 Missing authorization in HMI EA9
Remote attackers can execute arbitrary code on C-MORE HMI panels by exploiting a lack of authentication in the control service.
- 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-2020-10920?
CVE-2020-10920 is a critical missing authorization vulnerability in C-MORE HMI EA9, published on 23 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of C-MORE HMI EA9 Firmware version 6.52 touch screen panels. Authentication is not required to exploit this vulnerability. The specific flaw exists within the control service, which listens on TCP port 9999 by default. The issue results from the lack of authentication prior to allowing alterations to the system configuration. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-10493.
Weakness: CWE-306
Which versions are affected by CVE-2020-10920?
It affects 1 product.
Products include Automationdirect C-More Hmi Ea9 Firmware.
How do I fix CVE-2020-10920?
No fix has been published for CVE-2020-10920 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-2020-10920 being exploited?
There is no known exploitation of CVE-2020-10920 in the wild and no public exploit code.
Other vulnerabilities in C-MORE HMI EA9
Sources
Also known as GHSA-23g6-ppxq-qcwm.