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using ubuntu linux clone Q5. Environment variable and Set-UID Programs Set-UID is an important security mechanism in Unix operating systems. When a Set-UID program runs,
using ubuntu linux clone
Q5. Environment variable and Set-UID Programs Set-UID is an important security mechanism in Unix operating systems. When a Set-UID program runs, it assumes the owner's privileges. For example, if the program's owner is root, then when anyone runs this program, the program gains the root's privileges during its execution. Set-UID allows us to do many interesting things, but it escalates the user's privilege when executed, making it quite risky. Although the behaviors of Set-UID programs are decided by their program logic, not by users, users can indeed affect the behaviors via environment variables. To understand how Set-UID programs are affected, let us first figure out whether environment variables are inherited by the Set-UID program's process from the user's process. Step 1. We are going to write a program that can print out all the environment variables in the current process. #include Step by Step Solution
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