# CVE-2019-4000: Code injection in Druva inSync Mac OS Client

> A local authenticated attacker can execute arbitrary Python code with root privileges in the Druva inSync Mac OS Client.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 25 Feb 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-pwwh-9mwx-42h3

## What is CVE-2019-4000?

CVE-2019-4000 is a high-severity code injection vulnerability in Druva inSync Mac OS Client, published on 25 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper neutralization of directives in dynamically evaluated code in Druva inSync Mac OS Client 6.5.0 allows a local, authenticated attacker to execute arbitrary Python expressions with root privileges.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2019-4000?

It affects 1 product.


Products: Druva Insync.

## How do I fix CVE-2019-4000?

No fix has been published for CVE-2019-4000 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-4000 being exploited?

There is no known exploitation of CVE-2019-4000 in the wild and no public exploit code.

## Other vulnerabilities in Druva inSync Mac OS Client

- [CVE-2020-5798](https://insights.sbomify.com/CVE-2020-5798/): Privilege escalation in Druva inSync macOS Client Installers for v6.8.0 and prior (high 7.8)
- [CVE-2019-4001](https://insights.sbomify.com/CVE-2019-4001/): Code injection in Druva inSync Client (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-4000 and fix it if it is affected.

What it is: CVE-2019-4000 is a high-severity code injection vulnerability in Druva inSync Mac OS Client, published on 25 Feb 2020. 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-2019-4000 in the wild and no public exploit code.

Affected product: Druva inSync Mac OS Client. 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-2019-4000/ (Markdown: https://insights.sbomify.com/CVE-2019-4000/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-4000
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-4000
- OSV: https://osv.dev/vulnerability/CVE-2019-4000

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-4000/
Summaries are generated and may contain mistakes; the official description above is the record.