CVE-2022-33321CWE-319

Cleartext Transmission of Sensitive Information vulnerability due to the use of Basic Authentication for HTTP connections in Mitsubishi Electric consumer…

Critical · published November 8, 2022

CVSS v3.1
9.8
EPSS
1%
Percentile
62.7
In the wild
Unconfirmed
What it is

🚨 A wide range of Mitsubishi Electric consumer products are leaking sensitive info like a sieve! 🔥 Think of Basic Authentication like sending your personal secrets written on a postcard — anyone who intercepts it can read your entire message without breaking a sweat. In this case, it’s like having a mailbox with no lock, where anyone can peek inside. An attacker could easily sniff out usernames and passwords, allowing them to access sensitive information on your appliances or even trigger a denial of service (DoS) condition. Imagine a sneaky intruder turning off your air conditioning in the middle of a heatwave or disrupting your smart kitchen equipment! This could lead to some serious headaches for users.

Put simply

Think of Basic Authentication like sending your personal secrets written on a postcard — anyone who intercepts it can read your entire message without breaking a sweat. In this case, it’s like having a mailbox with no lock, where anyone can peek inside. This vulnerability occurs because Basic Authentication is used over HTTP, exposing sensitive credentials in cleartext during transmission. This means an unauthenticated attacker can capture this data without needing to break any codes or passwords.

What to do

An attacker could easily sniff out usernames and passwords, allowing them to access sensitive information on your appliances or even trigger a denial of service (DoS) condition. Imagine a sneaky intruder turning off your air conditioning in the middle of a heatwave or disrupting your smart kitchen equipment! This could lead to some serious headaches for users. To protect yourself, Mitsubishi Electric recommends updating the firmware of affected devices as detailed in their advisory. Additionally, switch to using HTTPS wherever possible for a secure transmission of sensitive information. Don't delay — secure your appliances today! You’ve got this! By taking these steps, you’ll ensure your smart devices are protected and your secrets stay safe! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01008 · 62.7th percentile
Weakness
CWE-319 · Cleartext Transmission of Sensitive Information
Published
2022-11-08T00:00Z
EPSS history
Timeline
  • 08 NOV 00:00Z
    Cleartext Transmission of Sensitive Information vulnerability due to the use of Basic Authentication for HTTP connections in Mitsubishi Electric consumer…
    cvelistv5