CVE-2019-5074

An exploitable stack buffer overflow vulnerability exists in the iocheckd service ''I/O-Check'' functionality of WAGO PFC200 Firmware version 03.01.07(13)…

published December 18, 2019

CVSS
—
EPSS
3%
Percentile
88.4
In the wild
Unconfirmed
What it is

🚨 An unauthenticated packet could trigger a stack buffer overflow in WAGO firmware! 🤯 This is an opportunity for attackers to execute their code without anyone knowing! Think of it like a mischievous kid sneaking into a candy store when the owner isn’t looking. If they manage to push enough candy boxes (or packets) around, they could create a big mess—and even take a few treats home! 🍬 If exploited, this vulnerability could allow an attacker to execute arbitrary code on the affected systems, potentially taking control of the device. This could lead to unauthorized access, data manipulation, or even a complete system takeover. It’s a scenario that could spell disaster for operational integrity! ⚡

Put simply

Think of it like a mischievous kid sneaking into a candy store when the owner isn’t looking. If they manage to push enough candy boxes (or packets) around, they could create a big mess—and even take a few treats home! 🍬 This vulnerability in the iocheckd service allows attackers to send specially crafted packets that overflow the stack buffer, resulting in the possibility of code execution on WAGO PFC200 and PFC100 firmware versions. Unfortunately, the lack of authentication makes it all too easy for attackers to trigger!

What to do

If exploited, this vulnerability could allow an attacker to execute arbitrary code on the affected systems, potentially taking control of the device. This could lead to unauthorized access, data manipulation, or even a complete system takeover. It’s a scenario that could spell disaster for operational integrity! ⚡ To protect your systems, immediately patch to the latest firmware versions (check if newer than 03.01.07(13) or 03.00.39(12) is available). Ensure that your network is properly segmented to limit exposure to unauthenticated packets from outside sources. Conduct a thorough security review of your devices to identify any potential risks. You've got this! By taking these steps, you can strengthen your defenses and keep your systems secure. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03280 · 88.4th percentile
Published
2019-12-18T19:30Z
EPSS history
Timeline
  • 18 DEC 19:30Z
    An exploitable stack buffer overflow vulnerability exists in the iocheckd service ''I/O-Check'' functionality of WAGO PFC200 Firmware version 03.01.07(13)…
    cvelistv5