Citrix Breakout When Restricted Means Nothing

Published

2026-04-14 14:10

Collected

2026-09-03 03:27

---
id: 7490
title: "Citrix Breakout When Restricted Means Nothing"
source_domain: labs.cognisys.group
source_url: "https://labs.cognisys.group/posts/Citrix-Breakout-When-Restricted-Means-Nothing/"
published_at: "2026-04-14T14:10:00Z"
tags: ["windows", "red-team", "citrix", "application-whitelisting", "breakout", "command-execution"]
phying_url: "https://phying.com/item/7490"
lang: en
---

# Citrix Breakout When Restricted Means Nothing

## Summary

Cognisys was presented with a challenge: A locked-down Citrix environment. After logging into the machine, Cognisys was dropped onto a standard Windows desktop, but with significant restrictions. The goal was simple: Open the Command Prompt. The result? A flat denial. Similarly, attempting to launch PowerShell yielded the same result, the application was blocked. Cognisys was tasked with determining whether command execution was still possible in an environment where Cmd.exe and PowerShell.exe were explicitly restricted. This blog explains the approach taken for this challenge and ultimately how Cognisys outmaneuvered the restricted desktop by turning its own trusted components against it, bypassing…

## Intelligence Metadata

- **Sources:** labs.cognisys.group
- **Published:** 2026-04-14T14:10:00Z
- **Original:** https://labs.cognisys.group/posts/Citrix-Breakout-When-Restricted-Means-Nothing/
- **Phying News:** https://phying.com/item/7490