CVE-2019-14931

An issue was discovered on Mitsubishi Electric Europe B.V

published October 28, 2019

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.1th percentile for exploit probability.

CVSS
โ€”
EPSS
57%
Percentile
99.1
In the wild
Unconfirmed
What it is

๐Ÿšจ An unauthenticated command injection vulnerability lurks in Mitsubishi Electric RTU devices! Just a sneaky semicolon is all it takes for an attacker to execute arbitrary commands on the system. ๐Ÿ”ฅ Think of it like a pizza delivery service that accepts orders without verifying if the caller is actually the customer. An attacker could call up and request topping changes or even a surprise ingredient โ€” all without a background check! This means an attacker could take control of the RTU system, execute malicious commands, or alter critical settings. The consequences could be devastating, leading to service disruptions or unauthorized access to sensitive operations.

Put simply

Think of it like a pizza delivery service that accepts orders without verifying if the caller is actually the customer. An attacker could call up and request topping changes or even a surprise ingredient โ€” all without a background check! The vulnerability arises from the Mobile Connection Test feature in ME-RTU devices, which allows attackers to inject OS commands through the host variable by using command separators like ';'. This unsafe handling of user input leads to arbitrary command execution.

What to do

This means an attacker could take control of the RTU system, execute malicious commands, or alter critical settings. The consequences could be devastating, leading to service disruptions or unauthorized access to sensitive operations. To protect against this vulnerability, update your ME-RTU devices to the latest firmware versions as they become available. Additionally, implement strict input validation to ensure no unsafe data is accepted from users. Regularly audit your devices and monitor for unusual activity. You've got this! With a few good practices, you can lock down your devices and keep the bad guys at bay! ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.57376 ยท 99.1th percentile
Published
2019-10-28T12:07Z
EPSS history
Timeline
  • 28 OCT 12:07Z
    An issue was discovered on Mitsubishi Electric Europe B.V
    cvelistv5