I have a C wrapper programme which basically execute a shell script. The shell script has 700 as permission and oracle is owner of the shell script.
The C execuatble has 4711 permission so that means that it has setuid bit set and group and others can execute the C executable.
The reason why I am... (2 Replies)
Hi,
I have a program with the following suid setup
-rwsr-sr-x 1 root other 653 Aug 16 17:00 restart_server
It basically starts up a service that has to be started by root. I just want the normal users to be able to restart the service using the script above.
But when the... (7 Replies)
Hi
I executed command "chown -R xxx:xxx /" with user root... and it was too late when I found the mistake. Ownership of some files under the root directory had already become xxx:xxx. Is there a way that can recovery the ownership of all my files back to the point where they were? I really thanks. (2 Replies)
Guy's
I'm trying to add some lines in sudo by useing this command visudo
# User privilege specification
root ALL=(ALL) ALL
# Uncomment to allow people in group wheel to run all commands
# %wheel ALL=(ALL) ALL
# Same thing without a password
# %wheel ALL=(ALL) NOPASSWD: ALL
#... (5 Replies)
Hi Expert,
I am trying to change ownership of one file to another user that is exist in the system but getting operation not permitted error
what could be the correct way?
# ls -lh .Xauthority_ori
-rw------- 1 maxim atlas 2.8K Jul 27 17:18 .Xauthority_ori
# id -a
uid=0(root)... (8 Replies)
Hi Gurus,
I need your suggestions,to implement setuid.
Here is the situation. I have a user xyz on a solaris zone.He needs to install a package using a pkgadd command but i guess only a root can run that .Is there any way I can set the setuid bit on the pkgadd which is in the location... (6 Replies)
Hi All
After downloading ZFS documentation from oracle site, I am able to successfully migrate UFS root FS without zones to ZFS root FS. But in case of UFS root file system with zones , I am successfully able to migrate global zone to zfs root file system but zone are still in UFS root file... (2 Replies)
RHEL 6.3
Could someone tell me how to use the find and chown command to replace all files in a directory owned by user1 (for this example) and replace with user1:group1? Most importantly I dont want to change any files owned by root. I recently used the following command but it changed the root... (4 Replies)
Just learning about the privilege escalation method provided by setuid. Correct me if I am wrong but what it does is change the uid of the current process to whatever uid I set. Right ?
So what stops me from writing my own C program and calling setuid(0) within it and gaining root privileges ?
... (2 Replies)
Discussion started by: sreyan32
2 Replies
LEARN ABOUT PLAN9
setuid
SETUID(1) General Commands Manual SETUID(1)NAME
setuid - run a command with a different uid.
SYNOPSIS
setuid username|uid command [ args ]
DESCRIPTION
Setuid changes user id, then executes the specified command. Unlike some versions of su(1), this program doesn't ever ask for a password
when executed with effective uid=root. This program doesn't change the environment; it only changes the uid and then uses execvp() to find
the command in the path, and execute it. (If the command is a script, execvp() passes the command name to /bin/sh for processing.)
For example,
setuid some_user $SHELL
can be used to start a shell running as another user.
Setuid is useful inside scripts that are being run by a setuid-root user -- such as a script invoked with super, so that the script can
execute some commands using the uid of the original user, instead of root. This allows unsafe commands (such as editors and pagers) to be
used in a non-root mode inside a super script. For example, an operator with permission to modify a certain protected_file could use a
super command that simply does:
cp protected_file temp_file
setuid $ORIG_USER ${EDITOR:-/bin/vi} temp_file
cp temp_file protected_file
(Note: don't use this example directly. If the temp_file can somehow be replaced by another user, as might be the case if it's kept in a
temporary directory, there will be a race condition in the time between editing the temporary file and copying it back to the protected
file.)
AUTHOR
Will Deich
local SETUID(1)