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Full Discussion: Inheriting SUDO access?
Top Forums UNIX for Dummies Questions & Answers Inheriting SUDO access? Post 302909074 by rbatte1 on Monday 14th of July 2014 08:44:37 AM
Old 07-14-2014
The account userA can directly issue:-
Code:
sudo su - userC
sudo shutdown
sudo rm -r /unix /boot
sudo vi /etc/passwd /etc/shadow

..... indeed anything you can think of. Yes, it might be logged via syslog, but they can edit the output to cover their tracks. You effectively have userA as a full privilege account. What does userA actually need to do?

If you are nervous of (and should be) giving out commands such as cp, rm, mv, vi, ftp etc. (especially as you can escape to a shell in the latter two) because you can then attack everything, then script up what is allowed and give them access to sudo-execute (not alter) the script meaning that they don't have direct access to the commands.

Give away as little as possible, after all it's you that will have to put it all back together again if they break something (intentionally or in error) if you still have a job. I don't want this to be scary, but would you give a local builder full access to your bank account to and trust them only to withdraw what they are owed?


Robin
 

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LEARN ABOUT OSX

networkd

networkd(8)						    BSD System Manager's Manual 					       networkd(8)

NAME

     networkd -- network daemon.

SYNOPSIS

     networkd

DESCRIPTION

     networkd is a launch-on-demand daemon that performs opreations on behalf of code in libystem_network, a component of libSystem.

     networkd has no user-specifiable command-line argument, and users should not run networkd manually.

   LOGGING
     There are several methods with which to examine networkd's internal state for debugging and diagnostic purposes. The syslog(1) logging levels
     map as follows:

	   Error - Error messages
	   Warning - Non-fatal concerns
	   Notice - Internal state messages
	   Info - Informational messages

     By default, only log level Notice through Error is logged.

     Syslog may be used to modify the mask which logging levels are logged.  For example, to enable log levels Emergency - Debug :

	   % sudo syslog -c networkd -d

     The networkd settings file may also be used to change the log level.  This method will add some additional logging that may be missing using
     the syslog technique listed above. This method is also persistent across runs of networkd For example, to enable log levels Emergency (1)
     through Debug (7):

	   % sudo defaults write /Library/Preferences/com.apple.networkd networkd_log_level -int 7

     The networkd settings file may also be used to change the log level for code in libsystem_network. For example, to enable log levels Emer-
     gency (1) through Debug (7) for libsystem_network code:

	   % sudo defaults write /Library/Preferences/com.apple.networkd libnetcore_log_level -int 7

     A SIGINFO signal will dump a snapshot summary of the internal state to the system log at log level NOTICE :

	   % sudo killall -INFO networkd

FILES

     /usr/libexec/networkd
	 The binary.

     /System/Library/LaunchDaemons/com.apple.networkd.plist
	 The launchd.plist(5) controlling the networkd job.

     /Library/Preferences/com.apple.networkd.plist
	 An optional preferences file read by networkd.

BUGS

     networkd bugs are tracked in Apple Radar component "networkd".

HISTORY

     networkd first appeared in Mac OS X 10.7.

SEE ALSO

     networkd_privileged(8), syslogd(8), launchd.plist(5)

Darwin								   June 2, 2019 							    Darwin
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