# CVE-2019-15743: Missing authorization in n/a

> A pre-installed maintenance tool on Sony Xperia Touch devices allows any third-party app to record microphone audio without user consent due to missing authorization checks.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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-825p-7535-q5m8

## What is CVE-2019-15743?

CVE-2019-15743 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 Sony Xperia Touch Android device with a build fingerprint of Sony/blanc_windy/blanc_windy:7.0/LOIRE-SMART-BLANC-1.0.0-170530-0834/1:user/dev-keys contains a pre-installed app with a package name of com.sonymobile.android.maintenancetool.testmic app (versionCode=24, versionName=7.0) that allows unauthorized microphone audio recording via a confused deputy attack. This capability can be accessed by any app co-located on the device. This app allows a third-party app to use its open interface to record audio to external storage.

Weakness: CWE-610 (Externally Controlled Reference to a Resource in Another Sphere)

## Which versions are affected by CVE-2019-15743?

It affects 1 product.


Products: Sony Xperia Touch Firmware.

## How do I fix CVE-2019-15743?

No fix has been published for CVE-2019-15743 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-15743 being exploited?

There is no known exploitation of CVE-2019-15743 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-15743 and fix it if it is affected.

What it is: CVE-2019-15743 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-2019-15743 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-2019-15743/ (Markdown: https://insights.sbomify.com/CVE-2019-15743/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-15743
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-15743
- OSV: https://osv.dev/vulnerability/CVE-2019-15743

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-15743/
Summaries are generated and may contain mistakes; the official description above is the record.