# CVE-2023-45321: Information disclosure in ctrlX HMI Web Panel - WR21 (WR2107)

> An attacker on the same network can intercept MQTT credentials transmitted over unencrypted HTTP by the Android client, enabling unauthorized access to the remote management protocol.

- **Severity:** High 8.3 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Oct 2023
- **Updated:** 11 Sep 2024
- **Also known as:** GHSA-fjrh-vmhr-2w59

## What is CVE-2023-45321?

CVE-2023-45321 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 with the define  method 1 (the user manually inserts the server ip address), use HTTP protocol to retrieve sensitive information (ip address and credentials to connect to a remote MQTT broker entity) instead of HTTPS and this feature is not configurable by the user. Due to the lack of encryption of HTTP,this issue allows an attacker placed in the same subnet network of the HMI device to intercept username and password necessary to authenticate to the MQTT server responsible to implement the remote management protocol.

Weakness: CWE-319 (Cleartext Transmission of Sensitive Information)

## Which versions are affected by CVE-2023-45321?

It affects 3 products.


Products: 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-2023-45321?

No fix has been published for CVE-2023-45321 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-45321 being exploited?

There is no known exploitation of CVE-2023-45321 in the wild and no public exploit code.

## Other vulnerabilities in Bosch Rexroth AG ctrlX HMI Web Panel - WR21 (WR2107)

- [CVE-2023-41255](https://insights.sbomify.com/CVE-2023-41255/): Missing authorization in ctrlX HMI Web Panel - WR21 (WR2107) (high 8.8)
- [CVE-2023-45220](https://insights.sbomify.com/CVE-2023-45220/): Information disclosure in ctrlX HMI Web Panel - WR21 (WR2107) (high 8.8)
- [CVE-2023-45851](https://insights.sbomify.com/CVE-2023-45851/): Missing authorization in ctrlX HMI Web Panel - WR21 (WR2107) (high 8.8)
- [CVE-2023-46102](https://insights.sbomify.com/CVE-2023-46102/): Hardcoded credentials in ctrlX HMI Web Panel - WR21 (WR2107) (high 8.8)
- [CVE-2023-43488](https://insights.sbomify.com/CVE-2023-43488/): Missing authorization in ctrlX HMI Web Panel - WR21 (WR2107) (high 7.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-45321 and fix it if it is affected.

What it is: CVE-2023-45321 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.
Exploitation: There is no known exploitation of CVE-2023-45321 in the wild and no public exploit code.

Affected product: Bosch Rexroth AG ctrlX HMI Web Panel - WR21 (WR2107). No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-45321/ (Markdown: https://insights.sbomify.com/CVE-2023-45321/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-45321
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-45321
- OSV: https://osv.dev/vulnerability/CVE-2023-45321

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-45321/
Summaries are generated and may contain mistakes; the official description above is the record.