CVE-2019-10119

eQ-3 HomeMatic CCU2 devices before 2.41.8 and CCU3 devices before 3.43.16 use session IDs for authentication but lack authorization checks

published July 10, 2019

CVSS
โ€”
EPSS
2%
Percentile
80.1
In the wild
Unconfirmed
What it is

โš ๏ธ A crafty attacker can turn a simple failed login attempt into admin access! eQ-3 HomeMatic devices before specific versions overlook crucial authorization checks, exposing a sneaky door to your smart home. ๐Ÿ”‘ Think of it like a guest checking into a hotel where the front desk forgets to verify their ID โ€” they just hand over the room key without a second thought! This oversight lets unauthorized individuals waltz right into your digital domain. An attacker could easily snag a session ID and launch themselves right into the admin area, potentially taking control of all connected devices. This means they could tamper with your smart home settings, change configurations, or even disable security features, leading to an absolutely hair-raising scenario!

Put simply

Think of it like a guest checking into a hotel where the front desk forgets to verify their ID โ€” they just hand over the room key without a second thought! This oversight lets unauthorized individuals waltz right into your digital domain. CVE-2019-10119 reveals that vulnerable CCU2 and CCU3 devices rely on session IDs for authentication without proper authorization checks, allowing attackers to gain unauthorized admin access via invalid login attempts.

What to do

An attacker could easily snag a session ID and launch themselves right into the admin area, potentially taking control of all connected devices. This means they could tamper with your smart home settings, change configurations, or even disable security features, leading to an absolutely hair-raising scenario! To shield yourself, update your HomeMatic devices to version 2.41.8 for CCU2 and 3.43.16 for CCU3. Additionally, consider implementing stronger access controls and monitoring user sessions for suspicious activity. You've got this! With these updates, your smart home will be safer and sounder than ever! ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01956 ยท 80.1th percentile
Published
2019-07-10T11:50Z
EPSS history
Timeline
  • 10 JUL 11:50Z
    eQ-3 HomeMatic CCU2 devices before 2.41.8 and CCU3 devices before 3.43.16 use session IDs for authentication but lack authorization checks
    cvelistv5