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#bypass

4 posts4 participants1 post today

💥🔧 Ubuntu's user namespace restrictions are about as useful as a chocolate teapot, as revealed by three new bypasses. Meanwhile, advisories pile up like unread emails, and users everywhere double down on their favorite pastime: keeping their fingers crossed. 🤞📧
seclists.org/oss-sec/2025/q1/2

seclists.orgoss-sec: Three bypasses of Ubuntu's unprivileged user namespace restrictions

PowerChell is a very cool tool by @itm4n to bypass PowerShell security measures like AMSI, Script Block & Module Logging using ETW, Transcription, Execution Policy and Constrained Language Mode! Nothing fancy and new, but everything in a single unmanaged binary!

- Blog: blog.scrt.ch/2025/02/18/reinve
- GitHub: github.com/scrt/PowerChell

This made my job much easier in my latest pentest. So, THX!

blog.scrt.chReinventing PowerShell in C/C++ – SCRT Team Blog