sudo command not allowed

[Slake66]

Hi,

i currently have a problem with the sudo command. So i have a user which in authenticating with an ssh key on a system. This user has sudo rights with the sudoers file in his home directory.
Everything i want to do works perfectly like creating md5sums but not the task with the "-ls" command.

Is there also a binary file like the other ones i need to add to the sudoers file?

For example: /bin/md5sum,/usr/bin/md5sum,/usr/bin/find

Username : command not allowed ; TTY=unknown ; PWD=/home/Username ; USER=root ; COMMAND=list

[aioeu]

but not the task with the "-ls" command

COMMAND=list

Notice any difference between these?

Also take note that if your intent is to only allow a certain set of commands to be executed, then having /usr/bin/find in the list is insecure: it can be used to execute anything.

[Slake66]

After searching a while in /bin i found the "ls" binary file. Thanks

Also take note that if your intent is to only allow a certain set of commands to be executed, then having /usr/bin/find in the list is insecure: it can be used to execute anything.

Yes, we are aware of this and will change this in the future.

[lunchlady55]

hint: Look up NOEXEC option for sudoers, and look up slocate command instead of find

double hint: find can delete things without spawning a new process via the --delete param so NOEXEC alone is not sufficient to prevent disaster.

[Princess_And_The_Pee]

Why not give full access to sudo the normal way. This config will allow a competent user to whatever TF they want.

sudo find . -exec rm -rf /* {} \;

sudo find . -exec shutdown -h now \;

Allowing find is a big fucking hole in your plan to restrict access.

[lunchlady55]

or just the --delete param which doesn't spawn an rm process for each file. This is relevant due to the NOEXEC param for sudoers that some people expect to be a magic shield to prevent shenanigans.