CVE-2018-7300

Directory Traversal / Arbitrary File Write / Remote Code Execution in the User.setLanguage method in eQ-3 AG Homematic CCU2 2.29.2 and earlier allows remote…

published February 22, 2018

CVSS
—
EPSS
31%
Percentile
98.2
In the wild
Unconfirmed
What it is

🚨 A crafty remote code execution flaw lurks in eQ-3 AG Homematic CCU2 devices, letting attackers write arbitrary files without authentication! 🔥 Think of this vulnerability like a delivery service that blindly accepts packages without checking the sender. An attacker can slip in malicious files, gaining control over the device just like an unwatched delivery could fill your home with unwanted items. This vulnerability may allow attackers to write harmful files directly to your device's filesystem, potentially leading to a total compromise of the device. If exploited, it could disrupt home automation functions, unlock unauthorized access to sensitive data, or even take over the device entirely. It's a recipe for chaos in your smart home!

Put simply

Think of this vulnerability like a delivery service that blindly accepts packages without checking the sender. An attacker can slip in malicious files, gaining control over the device just like an unwatched delivery could fill your home with unwanted items. The vulnerability occurs in the User.setLanguage method, allowing unauthenticated remote attackers to exploit directory traversal, which enables arbitrary file writing on the device's filesystem.

What to do

This vulnerability may allow attackers to write harmful files directly to your device's filesystem, potentially leading to a total compromise of the device. If exploited, it could disrupt home automation functions, unlock unauthorized access to sensitive data, or even take over the device entirely. It's a recipe for chaos in your smart home! Immediate action is needed! Ensure your eQ-3 AG Homematic CCU2 is updated to version 2.29.3 or later, which addresses this vulnerability. Regularly audit your device's configurations and limit access to trusted users only. You've got this! A few updates and your smart home will be safe and sound! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.30590 · 98.2th percentile
Published
2018-02-22T19:00Z
EPSS history
Timeline
  • 22 FEB 19:00Z
    Directory Traversal / Arbitrary File Write / Remote Code Execution in the User.setLanguage method in eQ-3 AG Homematic CCU2 2.29.2 and earlier allows remote…
    cvelistv5