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Operating Systems Solaris Solaris BigAdmin RSS Why user has permissions to execute 'init 0'? Post 302446393 by swm on Wednesday 18th of August 2010 01:50:46 PM
Old 08-18-2010
As the simple user, please issue the command "which init".
If it ultimately points to /sbin/init, or even if it doesn't, I would look at why the set userid bit and set groupid bit are on (I never hear of set other id bit ). /sbin/init on the x86 system I'm running has the permissions r-xr-x-rx. (Check your other systems). Since the set userid bit is on, the script is run as root since root is the owner. If you feel bold; as the user try "init 6" and see if it reboots (assuming "which init" points to /sbin/init).
 

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service(8)						      System Manager's Manual							service(8)

NAME
service - run a System V init script SYNOPSIS
service SCRIPT COMMAND [OPTIONS] service --status-all service --help | -h | --version DESCRIPTION
service runs a System V init script in as predictable an environment as possible, removing most environment variables and with the current working directory set to /. The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT. The supported values of COMMAND depend on the invoked script. service passes COMMAND and OPTIONS to the init script unmodified. All scripts should support at least the start and stop commands. As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start com- mand. service --status-all runs all init scripts, in alphabetical order, with the status command. EXIT CODES
service calls the init script and returns the status returned by it. FILES
/etc/init.d The directory containing System V init scripts. ENVIRONMENT
LANG, TERM The only environment variables passed to the init scripts. SEE ALSO
/etc/init.d/skeleton, update-rc.d(8), init(8), invoke-rc.d(8). Jan 2006 service(8)
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