CVE-2020-25196CWE-307

MOXA NPort IAW5000A-I/O Series

Critical · published December 23, 2020

CVSS v3.1
9.8
EPSS
2%
Percentile
78.5
In the wild
Unconfirmed
What it is

🚨 A simple password guess is all it takes to hijack SSH/Telnet sessions on vulnerable MOXA NPort devices! 🔥 Think of it like leaving your front door wide open while shouting your Wi-Fi password at the street—anyone can just walk in! In this case, attackers can easily brute-force their way into sensitive sessions, posing a severe risk to your network security. An attacker could gain full control over your device, potentially manipulating operations or accessing confidential data. This could lead to unauthorized changes in your I/O settings or even a complete system takeover, resulting in absolutely devastating consequences for your network!

Put simply

Think of it like leaving your front door wide open while shouting your Wi-Fi password at the street—anyone can just walk in! In this case, attackers can easily brute-force their way into sensitive sessions, posing a severe risk to your network security. The vulnerability in the MOXA NPort IAW5000A-I/O firmware allows SSH and Telnet sessions to be compromised through brute force attacks, as authentication checks can be bypassed if weak passwords are used.

What to do

An attacker could gain full control over your device, potentially manipulating operations or accessing confidential data. This could lead to unauthorized changes in your I/O settings or even a complete system takeover, resulting in absolutely devastating consequences for your network! To protect your devices, upgrade to firmware version 2.2 or higher immediately. Additionally, implement strong, complex passwords for all accounts to mitigate brute force attempts. Regularly monitor access logs to identify any suspicious activity. You've got this! By following these steps, you can lock down your network like a pro. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01814 · 78.5th percentile
Weakness
CWE-307 · Improper Restriction of Excessive Authentication Attempts
Published
2020-12-23T14:08Z
EPSS history
Timeline
  • 23 DEC 14:08Z
    MOXA NPort IAW5000A-I/O Series
    cvelistv5