# CVE-2019-15364: Missing authorization in n/a

> A pre-installed MediaTek app on Dexp BL250 devices allows any local app to modify system properties without authorization, potentially leading to privilege escalation.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Nov 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-g4wf-rhgg-rv7x

## What is CVE-2019-15364?

CVE-2019-15364 is a medium-severity missing authorization vulnerability in n/a, published on 14 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The Dexp BL250 Android device with a build fingerprint of DEXP/BL250/BL250:8.1.0/O11019/1530858027:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

## Which versions are affected by CVE-2019-15364?

It affects 1 product.


Products: Dexp Bl250 Firmware.

## How do I fix CVE-2019-15364?

No fix has been published for CVE-2019-15364 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-15364 being exploited?

There is no known exploitation of CVE-2019-15364 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-15364 and fix it if it is affected.

What it is: CVE-2019-15364 is a medium-severity missing authorization vulnerability in n/a, published on 14 Nov 2019. 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-2019-15364 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-2019-15364/ (Markdown: https://insights.sbomify.com/CVE-2019-15364/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-15364
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-15364
- OSV: https://osv.dev/vulnerability/CVE-2019-15364

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-15364/
Summaries are generated and may contain mistakes; the official description above is the record.