---
id: 6138
title: "Write Once, Shell Everywhere: Turning Arbitrary File Writes into RCE"
source_domain: ethiack.com
source_url: "https://ethiack.com/info-hub/research/write-once-shell-everywhere-arbitrary-file-writes-into-rce"
published_at: "2026-08-07T00:00:00Z"
tags: ["rce", "vulnerability-research", "attack-chains", "arbitrary-file-write", "containers", "research", "defcon", "exploit-development"]
phying_url: "https://phying.com/item/6138"
lang: en
---

# Write Once, Shell Everywhere: Turning Arbitrary File Writes into RCE

## Summary

Turning arbitrary file writes into RCE, from a DEF CON 34 talk: catalog known techniques, fingerprint the environment, and land shells on stripped containers lacking cron, SSH or package managers.

## Intelligence Metadata

- **Sources:** ethiack.com
- **Published:** 2026-08-07T00:00:00Z
- **Original:** https://ethiack.com/info-hub/research/write-once-shell-everywhere-arbitrary-file-writes-into-rce
- **Phying News:** https://phying.com/item/6138