CVE-2020-10920CWE-306

This vulnerability allows remote attackers to execute arbitrary code on affected installations of C-MORE HMI EA9 Firmware version 6.52 touch screen panels

Critical · published July 23, 2020

CVSS v3.0
9.8
EPSS
5%
Percentile
92.1
In the wild
Unconfirmed
What it is

🚨 A simple connection to TCP port 9999 could let attackers run wild on your C-MORE HMI EA9 panel without any authentication! 🔥 Think of it like leaving the back door to a high-tech control room wide open without a lock — anyone can just walk in and start pushing buttons at will! An attacker could essentially take over the device, executing any code they wish. This could lead to catastrophic failures, unauthorized changes, or even manipulation of critical processes, putting safety and security at serious risk.

Put simply

Think of it like leaving the back door to a high-tech control room wide open without a lock — anyone can just walk in and start pushing buttons at will! This vulnerability occurs due to a lack of authentication in the control service on TCP port 9999, allowing remote attackers to execute arbitrary code on the device without any safeguards in place.

What to do

An attacker could essentially take over the device, executing any code they wish. This could lead to catastrophic failures, unauthorized changes, or even manipulation of critical processes, putting safety and security at serious risk. Immediately patch your C-MORE HMI EA9 Firmware to version 6.53 or later to close this security hole. Additionally, consider blocking access to port 9999 from untrusted networks and reviewing your network security policies to mitigate exposure. You’ve got this! Follow these steps, and you’ll boost your defenses in no time! 🛡️

The record
Technical detail
CVSS v3.0
9.8 · CRITICAL
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.04922 · 92.1th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2020-07-23T15:35Z
EPSS history
Timeline
  • 23 JUL 15:35Z
    This vulnerability allows remote attackers to execute arbitrary code on affected installations of C-MORE HMI EA9 Firmware version 6.52 touch screen panels
    cvelistv5