CVE-2024-40457

No-IP Dynamic Update Client (DUC) v3.x uses cleartext credentials that may occur on a command line or in a file

Critical · published September 12, 2024

CVSS v3.1
9.1
EPSS
1%
Percentile
50.4
In the wild
Unconfirmed
What it is

🚨 No-IP Dynamic Update Client (DUC) v3.x has a jaw-dropping flaw: it stores your cleartext credentials openly in files! 🔥 Think of it like jotting down your bank PIN on a sticky note and leaving it stuck on your monitor — anyone can just grab it! This is a situation where secrets should be locked up tight, but instead, they’re hanging out in plain sight. If an attacker gains access to your system, they could easily snatch these credentials, potentially taking control of your network and wreaking havoc! This could lead to unauthorized access, data breaches, or even a complete takeover of your dynamic DNS updates — all absolutely devastating outcomes.

Put simply

Think of it like jotting down your bank PIN on a sticky note and leaving it stuck on your monitor — anyone can just grab it! This is a situation where secrets should be locked up tight, but instead, they’re hanging out in plain sight. CVE-2024-40457 is a critical vulnerability in No-IP DUC v3.x that exposes user credentials in cleartext format, either in command line or config files, allowing potential attackers to easily harvest these sensitive details.

What to do

If an attacker gains access to your system, they could easily snatch these credentials, potentially taking control of your network and wreaking havoc! This could lead to unauthorized access, data breaches, or even a complete takeover of your dynamic DNS updates — all absolutely devastating outcomes. To protect yourself, immediately switch to a more secure version of the No-IP DUC that handles credentials properly, or use environment variables for sensitive information. Additionally, audit your system for any instances where these credentials might be exposed and take proactive measures to secure your data. You've got this! By acting quickly, you can seal up this vulnerability and keep your network safe! 🛡️

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00648 · 50.4th percentile
Published
2024-09-12T00:00Z
EPSS history
Timeline
  • 12 SEP 00:00Z
    No-IP Dynamic Update Client (DUC) v3.x uses cleartext credentials that may occur on a command line or in a file
    cvelistv5