CVE-2018-15555

On Telus Actiontec WEB6000Q v1.1.02.22 devices, an attacker can login with root level access with the user "root" and password "admin" by using the enabled…

published June 28, 2019

CVSS
—
EPSS
3%
Percentile
87.2
In the wild
Unconfirmed
What it is

⚠️ A root access back door is just a UART header away! On Telus Actiontec WEB6000Q devices, simply plugging in the right cable lets attackers waltz in with "root" and the password "admin." 🔥 Think of it like leaving a window wide open in a secured building. An attacker can just slide right in without needing to pick the lock or break the door down. Once inside, an attacker wields full control—this could mean stealing sensitive data, modifying configurations, or even turning your network into a playground for malicious activities! The potential for chaos is absolutely devastating if not addressed.

Put simply

Think of it like leaving a window wide open in a secured building. An attacker can just slide right in without needing to pick the lock or break the door down. This vulnerability arises from the enabled onboard UART headers, which allow unauthorized access to root functionality using default login credentials. Essentially, it's a simple exploit that bypasses traditional security measures altogether.

What to do

Once inside, an attacker wields full control—this could mean stealing sensitive data, modifying configurations, or even turning your network into a playground for malicious activities! The potential for chaos is absolutely devastating if not addressed. To secure your devices, immediately change the default login credentials from 'admin' and ensure that the UART headers are disabled or secured. Regularly audit your network devices for unauthorized access points. You've got this! Act now, and you’ll have your network fortified in no time. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02974 · 87.2th percentile
Published
2019-06-28T14:34Z
EPSS history
Timeline
  • 28 JUN 14:34Z
    On Telus Actiontec WEB6000Q v1.1.02.22 devices, an attacker can login with root level access with the user "root" and password "admin" by using the enabled…
    cvelistv5