CVE-2020-25159CWE-121

Real Time Automation EtherNet/IP

published November 24, 2020

CVSS
—
EPSS
3%
Percentile
87.4
In the wild
Unconfirmed
What it is

⚠️ A crafty packet is all it takes! The 499ES EtherNet/IP Adaptor is vulnerable to a sneaky stack-based buffer overflow, opening the door for potential mayhem! 🔥 Think of this like a restaurant kitchen where a chef is overwhelmed by too many ingredient requests; if one order is too big, it can mess up the whole system. Here, a specially crafted packet could overflow and cause the service to crash or even execute rogue code, just like a kitchen going haywire! An attacker could exploit this vulnerability to send a specially crafted packet, which could lead to a denial-of-service condition or worse, execute malicious code on the device. This could render your network services unusable and expose you to further attacks, which is absolutely devastating!

Put simply

Think of this like a restaurant kitchen where a chef is overwhelmed by too many ingredient requests; if one order is too big, it can mess up the whole system. Here, a specially crafted packet could overflow and cause the service to crash or even execute rogue code, just like a kitchen going haywire! The vulnerability arises from a stack-based buffer overflow in the 499ES EtherNet/IP Adaptor's source code, allowing attackers to send crafted packets that may overflow memory, potentially leading to unauthorized code execution or crashes.

What to do

An attacker could exploit this vulnerability to send a specially crafted packet, which could lead to a denial-of-service condition or worse, execute malicious code on the device. This could render your network services unusable and expose you to further attacks, which is absolutely devastating! To mitigate this risk, ensure that you're running the latest firmware for the 499ES EtherNet/IP Adaptor. If you haven't already, consider implementing network segmentation to protect critical systems and set up monitoring for unusual packet activity. Keep an eye out for updates from the vendor! You've got this! With proactive measures, you can lock down your systems and keep everything running smoothly. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03026 · 87.4th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2020-11-24T19:12Z
EPSS history
Timeline
  • 24 NOV 19:12Z
    Real Time Automation EtherNet/IP
    cvelistv5