Restrict the use of su












0















I've restricted the use of su by creating an admin group



sudo groupadd admin
sudo usermod -a -G admin <YOUR ADMIN USERNAME>
sudo dpkg-statoverride --update --add root admin 4750 /bin/su


I've two sudo users and one of them belongs to this admin group. I realised the one who doens't belong to admin is able to edit /var/lib/dpkg/statoverride and change file permissions for that file using sudo. I tried to overcome this by



sudo chown "admin user":admin /var/lib/dpkg/statoverride
sudo chmod 600 /var/lib/dpkg/statoverride


but the user who doesn't belong to admin is still able to edit and change file permissions using sudo. How do I solve this?










share|improve this question




















  • 1





    When they are part of the sudo group they have that power if they are part of admin or not. Look into the sudoers instead where you can set certain sudo permissions to commands. help.ubuntu.com/community/Sudoers

    – Terrance
    Jan 22 at 20:13


















0















I've restricted the use of su by creating an admin group



sudo groupadd admin
sudo usermod -a -G admin <YOUR ADMIN USERNAME>
sudo dpkg-statoverride --update --add root admin 4750 /bin/su


I've two sudo users and one of them belongs to this admin group. I realised the one who doens't belong to admin is able to edit /var/lib/dpkg/statoverride and change file permissions for that file using sudo. I tried to overcome this by



sudo chown "admin user":admin /var/lib/dpkg/statoverride
sudo chmod 600 /var/lib/dpkg/statoverride


but the user who doesn't belong to admin is still able to edit and change file permissions using sudo. How do I solve this?










share|improve this question




















  • 1





    When they are part of the sudo group they have that power if they are part of admin or not. Look into the sudoers instead where you can set certain sudo permissions to commands. help.ubuntu.com/community/Sudoers

    – Terrance
    Jan 22 at 20:13
















0












0








0








I've restricted the use of su by creating an admin group



sudo groupadd admin
sudo usermod -a -G admin <YOUR ADMIN USERNAME>
sudo dpkg-statoverride --update --add root admin 4750 /bin/su


I've two sudo users and one of them belongs to this admin group. I realised the one who doens't belong to admin is able to edit /var/lib/dpkg/statoverride and change file permissions for that file using sudo. I tried to overcome this by



sudo chown "admin user":admin /var/lib/dpkg/statoverride
sudo chmod 600 /var/lib/dpkg/statoverride


but the user who doesn't belong to admin is still able to edit and change file permissions using sudo. How do I solve this?










share|improve this question
















I've restricted the use of su by creating an admin group



sudo groupadd admin
sudo usermod -a -G admin <YOUR ADMIN USERNAME>
sudo dpkg-statoverride --update --add root admin 4750 /bin/su


I've two sudo users and one of them belongs to this admin group. I realised the one who doens't belong to admin is able to edit /var/lib/dpkg/statoverride and change file permissions for that file using sudo. I tried to overcome this by



sudo chown "admin user":admin /var/lib/dpkg/statoverride
sudo chmod 600 /var/lib/dpkg/statoverride


but the user who doesn't belong to admin is still able to edit and change file permissions using sudo. How do I solve this?







permissions sudo security su






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 22 at 23:00







Mikey

















asked Jan 22 at 20:02









MikeyMikey

285




285








  • 1





    When they are part of the sudo group they have that power if they are part of admin or not. Look into the sudoers instead where you can set certain sudo permissions to commands. help.ubuntu.com/community/Sudoers

    – Terrance
    Jan 22 at 20:13
















  • 1





    When they are part of the sudo group they have that power if they are part of admin or not. Look into the sudoers instead where you can set certain sudo permissions to commands. help.ubuntu.com/community/Sudoers

    – Terrance
    Jan 22 at 20:13










1




1





When they are part of the sudo group they have that power if they are part of admin or not. Look into the sudoers instead where you can set certain sudo permissions to commands. help.ubuntu.com/community/Sudoers

– Terrance
Jan 22 at 20:13







When they are part of the sudo group they have that power if they are part of admin or not. Look into the sudoers instead where you can set certain sudo permissions to commands. help.ubuntu.com/community/Sudoers

– Terrance
Jan 22 at 20:13












0






active

oldest

votes











Your Answer








StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "89"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1112055%2frestrict-the-use-of-su%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Ask Ubuntu!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1112055%2frestrict-the-use-of-su%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

數位音樂下載

When can things happen in Etherscan, such as the picture below?

格利澤436b