CVE-2018-5440CWE-121

A Stack-based Buffer Overflow issue was discovered in 3S-Smart CODESYS Web Server

published February 15, 2018

CVSS
—
EPSS
3%
Percentile
87.6
In the wild
Unconfirmed
What it is

⚠️ A crafty request could lead to unexpected chaos! This stack-based buffer overflow in 3S-Smart CODESYS Web Server might let attackers execute arbitrary code or crash the server. 🔥 Think of this vulnerability like a traffic jam caused by a single car breaking down in a busy intersection—one wrong move and the whole flow is disrupted. If an attacker sends a specifically crafted request, they can cause a pile-up that takes down the server completely! An attacker could exploit this vulnerability to run arbitrary code on the web server or even crash it, leaving your operations in a state of disarray. Imagine your web server going down right when you need it most—absolutely devastating!

Put simply

Think of this vulnerability like a traffic jam caused by a single car breaking down in a busy intersection—one wrong move and the whole flow is disrupted. If an attacker sends a specifically crafted request, they can cause a pile-up that takes down the server completely! This vulnerability allows a stack-based buffer overflow due to improperly handled requests in CODESYS Web Server, specifically affecting all Microsoft Windows-based systems running standalone Version 2.3 or earlier versions of the CODESYS runtime system.

What to do

An attacker could exploit this vulnerability to run arbitrary code on the web server or even crash it, leaving your operations in a state of disarray. Imagine your web server going down right when you need it most—absolutely devastating! To secure your systems, upgrade to the latest version of CODESYS Web Server, ensuring you’re running at least Version V1.1.9.19. Regularly audit your server configurations and monitor for unusual traffic patterns. 🛡️ Don't worry! By following these steps, you can ensure your web server is safe and sound. You've got this! 🚀

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03096 · 87.6th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2018-02-15T10:00Z
EPSS history
Timeline
  • 15 FEB 10:00Z
    A Stack-based Buffer Overflow issue was discovered in 3S-Smart CODESYS Web Server
    cvelistv5