CVE-2021-45490

The client applications in 3CX on Windows, the 3CX app for iOS, and the 3CX application for Android through 2022-03-17 lack SSL certificate validation

published March 28, 2022

CVSS
—
EPSS
1%
Percentile
65.0
In the wild
Unconfirmed
What it is

⚠️ It turns out, 3CX apps on Windows, iOS, and Android have been playing a risky game by skipping SSL certificate validation! This is like a hotel receptionist who lets guests check in without verifying their IDs — all it takes is for someone with a fake ID to waltz right in! The lack of SSL validation means that attackers could intercept data exchanged between users and the server, potentially exposing sensitive information. While currently not widely exploited, this oversight could lead to devastating data leaks if left unchecked!

Put simply

This is like a hotel receptionist who lets guests check in without verifying their IDs — all it takes is for someone with a fake ID to waltz right in! This vulnerability arises from client applications in 3CX not validating SSL certificates properly, which could allow man-in-the-middle attacks and unauthorized access to confidential data.

What to do

The lack of SSL validation means that attackers could intercept data exchanged between users and the server, potentially exposing sensitive information. While currently not widely exploited, this oversight could lead to devastating data leaks if left unchecked! To mitigate this risk, ensure that you update your 3CX applications to the latest versions, which include necessary security patches for SSL validation. Additionally, conduct an internal audit of your network traffic to identify any suspicious activities. 🛡️ You've got this! Stay vigilant and keep your applications updated to secure the digital space! 🔒

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01087 · 65.0th percentile
Published
2022-03-28T01:10Z
EPSS history
Timeline
  • 28 MAR 01:10Z
    The client applications in 3CX on Windows, the 3CX app for iOS, and the 3CX application for Android through 2022-03-17 lack SSL certificate validation
    cvelistv5