Chapter 5 of 8 · Linux Terminal Basics 62%

🔐 CVE-2022-0847 let any user overwrite root-owned files through a kernel pipe flaw, could you detect it?

chmod 777 is how sysadmins create privilege escalation paths without realizing it. You'll read permission bits like an attacker, audit SUID binaries, and understand why /etc/shadow needs 640 before your next pentest. 🛡️

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Environment and package management

Soon Available Jul 09, 2026

Bash scripting for security

Soon Available Jul 10, 2026

Linux Terminal Basics

🔐 CVE-2022-0847 let any user overwrite root-owned files through a kernel pipe flaw, could you detect it?

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Course Progress

Course Chapters

Your first terminal session

Filesystem navigation

Reading and manipulating files

Searching for what matters

Users, groups, and permissions

Pipes and data pipelines

Process management

Network commands

Environment and package management

Bash scripting for security