Difference between inbuilt suid programs and user defined root suid programs under bash shell?

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1. UNIX for Dummies Questions & Answers

Can you gain root privileges if the suid program does not belong to root?

I had a question in my test which asked where suppose user B has a program with 's' bit set. Can user A run this program and gain root privileges in any way? I suppose not as the suid program run with privileges of owner and this program will run with B's privileges and not root.

2. Shell Programming and Scripting

SUID works for shell scripts??

SUID works for shell scripts (bash)?? I'm user user1 need to execute a shell script (script.sh) which is owned by user2.-rwsrwxrwx 1 user2 aduser 3518 Aug 21 05:33 script.shOnly user2 has write privileges to write/copy a file in directory /dir1/subdir. Hence SUID bit permissions are set to...

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the SUID of lpq

Hello My system is Debian-503-amd64. After I installed the "lpr" package, I found that some files with SUID bit come from this package. As: ls -l /usr/bin/lp* .... -rwsr-sr-x 1 root lp 31800 2008-05-20 /usr/bin/lpq -rwsr-sr-x 1 root lp 28504 2008-05-20 /usr/bin/lpr -rwsr-sr-x 1...

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How do check the programs that the actual user of the computer installed. I do not care at all about the default programs that came with your distro of Linux, I only want the user installed programs.

6. UNIX for Dummies Questions & Answers

Are programs like sys_open( ) ,sys_read( ) et al examples of system level programs ?

Are the programs written on schedulers ,thread library , process management, memory management, et al called systems programs ? How are they different from the programs that implement functions like open() , printf() , scanf() , read() .. they have a prefix sys_open, sys_close, sys_read etc , right...

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8. UNIX for Advanced & Expert Users

SUID not working

Hi Senario: I have previleges to edit a file F but User B does not have sufficient privs to edit it. In order for B to edit it I tried an indirect way. I created a script to edit F and SUID this script so that B can execute it with the privs of me. But this is not working . can some one help...

9. UNIX for Advanced & Expert Users

is SUID disabled for shell

Hi, I have two file in my directory. "catter" file contains "cat ./file". And "file" contails "Hi ashish". I have SUID bit set for catter file. But when a different user in my group runs file catter, shell displays "Permission denied" message. I just want to know can use of suid bit be...

10. UNIX for Dummies Questions & Answers

what is suid ?

what is SUID ? can someone explain or point me to a link ? thanks simon2000

UNIX for Dummies Questions & Answers