# CVE-2019-18370: Command injection in n/a

> Attackers can execute arbitrary commands on Xiaomi Mi WiFi R3G routers via command injection in the speed test API.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Oct 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-353j-pfv3-ppx7

## What is CVE-2019-18370?

CVE-2019-18370 is a critical command injection vulnerability in n/a, published on 23 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered on Xiaomi Mi WiFi R3G devices before 2.28.23-stable. The backup file is in tar.gz format. After uploading, the application uses the tar zxf command to decompress, so one can control the contents of the files in the decompressed directory. In addition, the application's sh script for testing upload and download speeds reads a URL list from /tmp/speedtest_urls.xml, and there is a command injection vulnerability, as demonstrated by api/xqnetdetect/netspeed.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2019-18370?

It affects 1 product.


Products: Mi Millet Router 3g Firmware.

## How do I fix CVE-2019-18370?

No fix has been published for CVE-2019-18370 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-18370 being exploited?

There is no known exploitation of CVE-2019-18370 in the wild and no public exploit code.

Public exploit code:

- https://github.com/FzBacon/CVE-2019-18370_XiaoMi_Mi_WIFI_RCE_analysis (github_poc): https://github.com/FzBacon/CVE-2019-18370_XiaoMi_Mi_WIFI_RCE_analysis

## Other vulnerabilities in n/a

- [CVE-2019-18371](https://insights.sbomify.com/CVE-2019-18371/): Path traversal in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-18370 and fix it if it is affected.

What it is: CVE-2019-18370 is a critical command injection vulnerability in n/a, published on 23 Oct 2019. 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-2019-18370 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-2019-18370/ (Markdown: https://insights.sbomify.com/CVE-2019-18370/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-18370
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-18370
- OSV: https://osv.dev/vulnerability/CVE-2019-18370

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-18370/
Summaries are generated and may contain mistakes; the official description above is the record.