How to Execute Root Commands in PHP on a Linux System with Apache User Authority?

Executing Root Commands via PHP

Problem:

In a Linux system with Apache user authority, how can you execute shell commands that require root privileges using PHP, without resorting to unsafe solutions or sudoers rules?

Solution 1: Binary Wrapper (with suid Bit)

1. Create a Shell Script:

   • Create a script containing the root commands you want to execute (e.g., php_shell.sh).

2. Set Script Permissions:

   • Set root as the file owner and grant write permissions only to root.

3. Create a Binary Wrapper:

   • Create a C program that executes the shell script with suid bit permissions.

4. Compile and Set Permissions:

   • Compile the wrapper (wrapper.c) and grant it root permissions, including the suid bit.

Alternative:

If you don't need to change the commands frequently, you can write them directly in the wrapper program, eliminating the need for an external script.

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