CVE-2023-46102 Hardcoded credentials in ctrlX HMI Web Panel - WR21 (WR2107)

High 8.8 Published 25 Oct 2023 Updated 11 Sep 2024

An attacker on the same network can execute arbitrary commands on Bosch ctrlX HMI panels by exploiting a hard-coded DES key used for MQTT communication.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-46102?

CVE-2023-46102 is a high-severity vulnerability in Bosch Rexroth AG ctrlX HMI Web Panel - WR21 (WR2107), published on 25 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The Android Client application, when enrolled to the AppHub server, connects to an MQTT broker to exchange messages and receive commands to execute on the HMI device. The protocol builds on top of MQTT to implement the remote management of the device is encrypted with a hard-coded DES symmetric key, that can be retrieved reversing both the Android Client application and the server-side web application. This issue allows an attacker able to control a malicious MQTT broker on the same subnet network of the device, to craft malicious messages and send them to the HMI device, executing arbitrary commands on the device itself.

Weakness: CWE-798

Which versions are affected by CVE-2023-46102?

It affects 3 products.

Products include Boschrexroth Ctrlx Hmi Web Panel Wr2107 Firmware, Boschrexroth Ctrlx Hmi Web Panel Wr2110 Firmware, Boschrexroth Ctrlx Hmi Web Panel Wr2115 Firmware.

How do I fix CVE-2023-46102?

No fix has been published for CVE-2023-46102 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-46102 being exploited?

There is no known exploitation of CVE-2023-46102 in the wild and no public exploit code.

Sources

Also known as GHSA-cpcg-2x7v-cxj7.