CVE-2021-3325

Monitorix 3.13.0 allows remote attackers to bypass Basic Authentication in a default installation (i.e., an installation without a hosts_deny option)

published January 27, 2021

CVSS
—
EPSS
2%
Percentile
82.8
In the wild
Unconfirmed
What it is

⚠️ A new feature just rolled out, but it opened the door wide! Monitorix 3.13.0 allows attackers to bypass Basic Authentication if the hosts_deny option isn’t configured. 🔓 Think of it like a restaurant introducing a fancy new reservation system but forgetting to check if the front door is locked. Suddenly, anyone can waltz in without a reservation, because the safeguards were missed during the upgrade! If an attacker discovers this flaw, they could access sensitive monitoring data without any authentication, leaving your system vulnerable. It's like opening up a treasure chest with no guards or locks in place—potentially disastrous!

Put simply

Think of it like a restaurant introducing a fancy new reservation system but forgetting to check if the front door is locked. Suddenly, anyone can waltz in without a reservation, because the safeguards were missed during the upgrade! This vulnerability in Monitorix 3.13.0 stems from a new access-control feature that wasn't properly configured for existing installations, allowing unauthenticated access if the hosts_deny option is not set.

What to do

If an attacker discovers this flaw, they could access sensitive monitoring data without any authentication, leaving your system vulnerable. It's like opening up a treasure chest with no guards or locks in place—potentially disastrous! To fix this, make sure to configure the hosts_deny option immediately after updating to version 3.13.0. Additionally, review your authentication settings and ensure that they are secure. Stay proactive to keep those doors closed! You can tackle this! Configure the settings, and you'll have your system locked down in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02257 · 82.8th percentile
Published
2021-01-27T18:56Z
EPSS history
Timeline
  • 27 JAN 18:56Z
    Monitorix 3.13.0 allows remote attackers to bypass Basic Authentication in a default installation (i.e., an installation without a hosts_deny option)
    cvelistv5