# CVE-2019-8513: Command injection in macOS

> A local user can execute arbitrary shell commands on macOS due to insufficient input validation, requiring a system update to mitigate.

- **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:** 18 Dec 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-8qpr-xr7m-crmq

## What is CVE-2019-8513?

CVE-2019-8513 is a high-severity command injection vulnerability in Apple Mac Os X, published on 18 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

This issue was addressed with improved checks. This issue is fixed in macOS Mojave 10.14.4. A local user may be able to execute arbitrary shell commands.

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

## Which versions are affected by CVE-2019-8513?

It affects 1 product.


Products: Apple Mac Os X.

## How do I fix CVE-2019-8513?

No fix has been published for CVE-2019-8513 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-8513 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-8513 exists.

Public exploit code:

- Mac OS X TimeMachine (tmdiagnose) Command Injection Privilege Escalation (metasploit)
- Mac OS X TimeMachine - 'tmdiagnose' Command Injection Privilege Escalation (Metasploit) (exploitdb)

## Other vulnerabilities in Apple Mac Os X

- [CVE-2014-7169](https://insights.sbomify.com/CVE-2014-7169/): GNU Bourne-Again Shell (Bash) Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2014-6271](https://insights.sbomify.com/CVE-2014-6271/): GNU Bourne-Again Shell (Bash) Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2012-1823](https://insights.sbomify.com/CVE-2012-1823/): PHP-CGI Query String Parameter (critical 9.8, exploited in the wild)
- [CVE-2021-30713](https://insights.sbomify.com/CVE-2021-30713/): Apple macOS Unspecified (high 7.8, exploited in the wild)
- [CVE-2019-8526](https://insights.sbomify.com/CVE-2019-8526/): Apple macOS Use-After-Free (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-8513 and fix it if it is affected.

What it is: CVE-2019-8513 is a high-severity command injection vulnerability in Apple Mac Os X, published on 18 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-8513 exists.

Affected product: Apple Mac Os X. 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-2019-8513/ (Markdown: https://insights.sbomify.com/CVE-2019-8513/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-8513
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-8513
- OSV: https://osv.dev/vulnerability/CVE-2019-8513

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-8513/
Summaries are generated and may contain mistakes; the official description above is the record.