# CVE-2021-34589: Bender Charge Controller: RFID leak

> Attackers can read the RFID of the last charge event without authentication via the web interface of Bender ebee charge controllers.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Apr 2022
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-c36w-9wvv-9rh6

## What is CVE-2021-34589?

CVE-2021-34589 is a high-severity vulnerability in Bender / ebee CC612, published on 27 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In Bender/ebee Charge Controllers in multiple versions are prone to an RFID leak. The RFID of the last charge event can be read without authentication via the web interface.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2021-34589?

It affects 5 products.


Products: Bender Cc612 Firmware, Bender Cc613 Firmware, Bender Icc15xx Firmware, Bender Icc16xx Firmware, Bender Icc613 Firmware.

## How do I fix CVE-2021-34589?

No fix has been published for CVE-2021-34589 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-34589 being exploited?

There is no known exploitation of CVE-2021-34589 in the wild and no public exploit code.

## Other vulnerabilities in Bender / ebee CC612

- [CVE-2021-34601](https://insights.sbomify.com/CVE-2021-34601/): Bender Charge Controller: Hardcoded Credentials in Charge Controller (critical 9.8)
- [CVE-2021-34592](https://insights.sbomify.com/CVE-2021-34592/): Bender Charge Controller: Command injection via Web interface (high 8.8)
- [CVE-2021-34602](https://insights.sbomify.com/CVE-2021-34602/): Bender Charge Controller: Long URL could lead to webserver crash (high 8.8)
- [CVE-2021-34588](https://insights.sbomify.com/CVE-2021-34588/): Bender Charge Controller: Unprotected data export (high 8.6)
- [CVE-2021-34591](https://insights.sbomify.com/CVE-2021-34591/): Bender Charge Controller: Local privilege Escalation (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-34589 and fix it if it is affected.

What it is: CVE-2021-34589 is a high-severity vulnerability in Bender / ebee CC612, published on 27 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-34589 in the wild and no public exploit code.

Affected product: Bender / ebee CC612. 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-2021-34589/ (Markdown: https://insights.sbomify.com/CVE-2021-34589/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-34589
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-34589
- OSV: https://osv.dev/vulnerability/CVE-2021-34589

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-34589/
Summaries are generated and may contain mistakes; the official description above is the record.