CVE-2023-38584CWE-121

Weintek cMT3000 HMI Web CGI Stack-based Buffer Overflow

Critical · published October 19, 2023

CVSS v3.1
9.8
EPSS
1%
Percentile
70.8
In the wild
Unconfirmed
What it is

🚨 A stack-based buffer overflow in Weintek's cMT3000 HMI Web device could let anonymous attackers completely hijack control! 🔥 Think of this like a hotel with a faulty lock on its main door. If someone can mess with the mechanism, they could just walk in without checking in—a guest bypassing all security protocols! An attacker could gain total control of the device, overriding any security measures. This could lead to unauthorized access to sensitive data or manipulation of crucial systems, which is absolutely devastating for both user privacy and system integrity.

Put simply

Think of this like a hotel with a faulty lock on its main door. If someone can mess with the mechanism, they could just walk in without checking in—a guest bypassing all security protocols! This vulnerability resides in the command_wb.cgi within the cMT3000's cgi-bin directory, allowing attackers to exploit a stack-based buffer overflow to hijack the control flow and bypass authentication entirely.

What to do

An attacker could gain total control of the device, overriding any security measures. This could lead to unauthorized access to sensitive data or manipulation of crucial systems, which is absolutely devastating for both user privacy and system integrity. To mitigate this risk, patch the device immediately if an update is available from Weintek. Additionally, limit access to the device by implementing network segmentation and restricting anonymous access to critical resources. You've got this! Following these steps will help you lock down your systems and protect against potential threats. 🛡️

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
0.01327 · 70.8th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2023-10-19T19:20Z
EPSS history
Timeline
  • 19 OCT 19:20Z
    Weintek cMT3000 HMI Web CGI Stack-based Buffer Overflow
    cvelistv5