The affected Kieback & Peter DDC building controllers are vulnerable to cross-site scripting, enabling JavaScript to be executed by the victim's browser, which allows the attacker to control the browser.
For DDC520, DDC4002e, DDC4200e, DDC4400e, DDC4020e, and DDC4040e controllers,
Kieback & Peter
recommends the following safety measures:
- Restrict network access to the device
- Do not directly connect the device to the Internet
For DDC520, DDC4002e, DDC4200e, DDC4400e, DDC4020e, and DDC4040e controllers, update the firmware to the latest available version:
- DDC4002e: Update to version 1.23.5 or newer
- DDC4200e: Update to version 1.23.5 or newer
- DDC4400e: Update to version 1.23.5 or newer
- DDC4020e: Update to version 1.23.5 or newer
- DDC4040e: Update to version 1.23.5 or newer
- DDC520: Update to version 1.24.2 or newer