# CVE-2017-17436: Weak cryptography in n/a

> Attackers can eavesdrop on unencrypted Bluetooth communications to steal passcodes from Vaultek Gun Safes, bypassing advertised security features.

- **Severity:** High 8.8 (`CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 7 Dec 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-rvq2-hqr6-pgqq

## What is CVE-2017-17436?

CVE-2017-17436 is a high-severity vulnerability in n/a, published on 7 Dec 2017. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An issue was discovered in the software on Vaultek Gun Safe VT20i products. There is no encryption of the session between the Android application and the safe. The website and marketing materials advertise that this communication channel is encrypted with "Highest Level Bluetooth Encryption" and "Data transmissions are secure via AES256 bit encryption." These claims, however, are not true. Moreover, AES256 bit encryption is not supported in the Bluetooth Low Energy (BLE) standard, so it would have to be at the application level. This lack of encryption allows an individual to learn the passcode by eavesdropping on the communications between the application and the safe.

Weakness: CWE-326 (Inadequate Encryption Strength)

## Which versions are affected by CVE-2017-17436?

It affects 1 product.


Products: Vaulteksafe Vt20i Firmware.

## How do I fix CVE-2017-17436?

No fix has been published for CVE-2017-17436 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-17436 being exploited?

There is no known exploitation of CVE-2017-17436 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2017-17435](https://insights.sbomify.com/CVE-2017-17435/): An issue was discovered in the software on Vaultek Gun Safe VT20i products, aka BlueSteal. (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-17436 and fix it if it is affected.

What it is: CVE-2017-17436 is a high-severity vulnerability in n/a, published on 7 Dec 2017. 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-2017-17436 in the wild and no public exploit code.

Affected product: n/a. 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-2017-17436/ (Markdown: https://insights.sbomify.com/CVE-2017-17436/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-17436
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-17436
- OSV: https://osv.dev/vulnerability/CVE-2017-17436

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-17436/
Summaries are generated and may contain mistakes; the official description above is the record.