Sponsored Content
Operating Systems AIX Why /bin/su permission with SUID? Post 302910409 by rbatte1 on Thursday 24th of July 2014 08:53:52 AM
Old 07-24-2014
The reason that the su command is SUID is that without this attribute, a non-superuser would not have the privilege to switch user at all, it would simply be running as the original account. The SUID means that for the execution of the code, you will be as the owner of the code, which must be root or another superuser account (i.e. User ID zero)

The code will then be powerful enough to do what it needs and within the code, it will verify that you are allowed to do what you are asking it to, i.e. it may prompt for the target user password.




Robin
These 2 Users Gave Thanks to rbatte1 For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

/bin/sh: bad interpreter: Permission denied

today i started the LFS book (version 4.0). Basically i am using slackware 9.0 to try and install a new linux completely from source on another partition. Now i took the book's recommendations and created a user called lfs so i wouldn't have to do the stuff as root, and i have got the new LFS... (4 Replies)
Discussion started by: Calum
4 Replies

2. UNIX for Dummies Questions & Answers

fuser: difference with bin/sh and bin/ksh shell script

Hi, I have a problem I don't understand with fuser. I launch a simple shell script mysleep.sh: I launch the command fuser -fu mysleep.sh but fuser doesn't return anything excepted: mysleep: Then I modify my script switching from #!/bin/sh to #!/bin/ksh I launch the command fuser -fu... (4 Replies)
Discussion started by: Peuj
4 Replies

3. Solaris

/usr/bin has been changed with 777 permission

Hello Guruz, Relay bad condition :mad: Some has changed the permission to 777 recursively for /usr/bin directory by mistake. Now all the permission looks to be 777 on /usr/bin Hence I am so many system related errors as 1 show below. When I am trying to change the password, I am getting... (5 Replies)
Discussion started by: bullz26
5 Replies

4. OS X (Apple)

I accidentally changed to only write permission on /usr/bin... please Help!

I accidentally changed to sudo chmod a=w to my /usr/bin folder on my macbook with OS 10.5.8... Please help! I can't even get into a terminal correctly cause it displays: -bash: uname: command not found -bash: cut: command not found -bash: uname: command not found -bash: cut: command not found... (6 Replies)
Discussion started by: scaryMac23
6 Replies

5. Red Hat

/bin strange permission, corrupted? [solved]

Hi I think my /bin is corrupted which is why I can’t boot my server.. Anyone knows what below file permission means? # ls -l /mnt/sysimage | grep bin drwxr-xr-x 2 root root 12288 Sep 29 11:23 sbin ?r--rw-x 41112 16694 1305152 0 Feb 10 2055 bin Tried overwriting, deleting,chmod,chown but... (0 Replies)
Discussion started by: halacil
0 Replies

6. OS X (Apple)

When to use /Users/m/bin instead of /usr/local/bin (& whats the diff?)?

Q1. I understand that /usr/local/bin means I can install/uninstall stuff in here and have any chance of messing up my original system files or effecting any other users. I created this directory myself. But what about the directory I didn't create, namely /Users/m/bin? How is that directory... (1 Reply)
Discussion started by: michellepace
1 Replies

7. Shell Programming and Scripting

[Solved] Retrieve all the permission of the /bin folder

hello friends, By mistake I have run find / -type f -exec chmod 644 {} \; now all permission has been chaged of /bin I am not able to change the permission. I am working on the virtuozzo VPS. Is their any way to retrieve the permission to 770 to /bin Note /bin/chmod also not executing... (2 Replies)
Discussion started by: sharlin
2 Replies

8. AIX

Redistribution bin required for AIX. j7r164redist.7.1.0.25.bin

Hi, I am planning to install a version of Informatica on my AIX box. It requires a specific java build in pap6470_27sr2-20141101_01(SR2). The current link for IBM 64-bit SDK for AIX®, JavaTM Technology Edition, Version 7 Release 1 has a more recent version in j7r164redist.7.1.0.75.bin. Is... (4 Replies)
Discussion started by: meetpraveens
4 Replies

9. UNIX for Dummies Questions & Answers

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

Hey guys, Suppose i run passwd via bash shell. It is a suid program, which temporarily runs as root(owner) and modifies the user entries. However, when i write a C file and give 4755 permission and root ownership to the 'a.out' file , it doesn't run as root in bash shell. I verified this by... (2 Replies)
Discussion started by: syncmaster
2 Replies

10. Shell Programming and Scripting

Usage of #!/bin/sh vs #!/bin/bash shell scripts?

Some question about the usage of shell scripts: 1.) Are the commands of the base shell scripts a subset of bash commands? 2.) Assume I got a long, long script WITHOUT the first line. How can I find out if the script was originally designed für "sh" or "bash"? 3.) How can I check a given... (3 Replies)
Discussion started by: pstein
3 Replies
AUTRACE:(8)						  System Administration Utilities					       AUTRACE:(8)

NAME
autrace - a program similar to strace SYNOPSIS
autrace program [-r] [program-args]... DESCRIPTION
autrace is a program that will add the audit rules to trace a process similar to strace. It will then execute the program passing arguments to it. The resulting audit information will be in the audit logs if the audit daemon is running or syslog. This command deletes all audit rules prior to executing the target program and after executing it. As a safety precaution, it will not run unless all rules are deleted with auditctl prior to use. OPTIONS
-r Limit syscalls collected to ones needed for analyzing resource usage. This could help people doing threat modeling. This saves space in logs. EXAMPLES
The following illustrates a typical session: autrace /bin/ls /tmp ausearch --start recent -p 2442 -i and for resource usage mode: autrace -r /bin/ls ausearch --start recent -p 2450 --raw | aureport --file --summary ausearch --start recent -p 2450 --raw | aureport --host --summary SEE ALSO
ausearch(8), auditctl(8). AUTHOR
Steve Grubb Red Hat Jan 2007 AUTRACE:(8)
All times are GMT -4. The time now is 11:27 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy