Injection
Command Injection
When web apps pass user input to a system shell, attackers can append their own OS commands and run anything on the server — read files, add users, establish reverse shells.
Intermediate55 min14 lessons4 hands-on
First lesson free. The full module is part of Pro.
You'll be able to
- ✓Identify where web applications call out to the operating system
- ✓Exploit command injection using shell metacharacters (;, |, &&)
- ✓Bypass filters with encoding, whitespace, and alternative syntax
- ✓Escalate command injection to a full reverse shell
Lessons
- 1The Router That Gave Attackers Root on Millions of Home Networks
- 2How Command Injection WorksHANDS-ON
- 3Finding Command Injection Points
- 4Tool: commix — Automated Command Injection
- 5Your Turn: Break Out of the CommandHANDS-ON
- 6Level Up: Beat the Space FilterHANDS-ON
- 7Practice: Ping Tool Injection
- 8Operator Chaining — Controlling Execution Flow
- 9Blind Command Injection — No Output Visible
- 10Practice: Blind CMDI — Timing and File Exfiltration
- 11Filter Bypass — When the Obvious Is Blocked
- 12What Actually Stops Command Injection
- 13Module quiz
- 14Hands-on Lab: Exploit NetOps ConsoleHANDS-ON
