Answer:
Answer explained below
Explanation:
Yes, you can let Set-uid program that is owned by root to run your code instead of /bin/ls but it has it's own drawbacks and is actually not safe.
As you can not rely on that since some of the shells if different from the ruid drop an euid which is actually not safe.
execl("/bin/ls", "ls",(char *)0);
run this under your main program.
Since it can have a root previlege,
-$ cd /tmp/
/tmp$ sudo su
:/tmp# gcc -o system system.c
:/tmp# chmod u+s system // changing file permissions
:/tmp# exit
exit
:/tmp$ cp /bin/sh /tmp/ls
:/tmp$ ./system
<u>Steps:
</u>
1. The first thing you need to do is copy /bin/sh to /tmp.
2. After copying /bin/sh to /tmp set a new name ls but make sure your sh ->.zsh.
3. Set PATH to current directory. /tmp.
4. Compile
5. Run the program system and you can get your root previledge.
Now, with the above exmaple if you change /bin/sh soo that it points back to /bin/bash and repeat all the previous steps, you will not be able to get your root previledges.
C) numbering pages at the bottom inside corner
An Engineering notebook is a legal document made of bound, grid paper where engineers formally document written ideas, sketches, work session summaries, research findings and interview information in chronological order.
When not in use, the notebook should be stored in a safe location with each page dated and signed.
There will absolutely no situation where a page is removed.
All entries should start at the top of each page and ending at the bottom. Supporting material should be permanently affixed.
Book pages should be numbered on the top right side of the page.
The tool that you use to secure remote access by users is VPN
Answer:
PAP authentication method
Explanation:
PAP known as Pass word authentication protocol Basically, PAP works like a standard login procedure; the remote system authenticates itself to the using a static user name and password combination, so not recommended for applications.
The answer is false......