# CVE-2023-23773: Security feature bypass in EBTS/MBTS Base Radio

> An authenticated attacker can bypass firmware signature checks to execute arbitrary code and extract secrets on Motorola base radios.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:H/RL:U/RC:C/CR:H/IR:H/AR:M/MAV:N/MAC:L/MPR:H/MUI:N/MS:U/MC:H/MI:H/MA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Aug 2023
- **Updated:** 1 Oct 2024
- **Also known as:** GHSA-74wm-8c3j-gw64

## What is CVE-2023-23773?

CVE-2023-23773 is a high-severity vulnerability in Motorola EBTS/MBTS Base Radio, published on 29 Aug 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Motorola EBTS/MBTS Base Radio fails to check firmware authenticity. The Motorola MBTS Base Radio lacks cryptographic signature validation for firmware update packages, allowing an authenticated attacker to gain arbitrary code execution, extract secret key material, and/or leave a persistent implant on the device.

Weakness: CWE-347 (Improper Verification of Cryptographic Signature)

## Which versions are affected by CVE-2023-23773?

It affects 2 products.


Products: Motorola Ebts Base Radio Firmware, Motorola Mbts Base Radio Firmware.

## How do I fix CVE-2023-23773?

No fix has been published for CVE-2023-23773 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-23773 being exploited?

There is no known exploitation of CVE-2023-23773 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-23773 and fix it if it is affected.

What it is: CVE-2023-23773 is a high-severity vulnerability in Motorola EBTS/MBTS Base Radio, published on 29 Aug 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-23773 in the wild and no public exploit code.

Affected product: Motorola EBTS/MBTS Base Radio. 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-2023-23773/ (Markdown: https://insights.sbomify.com/CVE-2023-23773/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-23773
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-23773
- OSV: https://osv.dev/vulnerability/CVE-2023-23773

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-23773/
Summaries are generated and may contain mistakes; the official description above is the record.