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sudo must be owned by uid 0 and have the setuid bit set

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0

1

I have changed my ubuntu super password by recovery mode
after that i can't run my sudo command in normal user

i have attempted to crack my previous password in Recovery mode
i followed this link to crack my password

>>>$sudo ---In global mode throws me an below error

sudo: /usr/local/bin/sudo must be owned by uid 0 and have the setuid bit set

>>$ ls -l sudo --> permissions

-r-sr-xr-x 1 root root 136808 May 29 2017 sudo


/usr/local/bin$ ./sudo ---> i need this /usr/local/bin ./sudo not working
also throw the below error
sudo: ./sudo must be owned by uid 0 and have the setuid bit set

/usr/bin$ ./sudo --> working fine

usage: sudo -h | -K | -k | -V

My question is

I need to Access my sudo comand from the terminal from anywhere i need to run

Any help will be appreciated

ubuntu sudo setuid

share|improve this question

edited Jan 23 '18 at 16:09

muthukumar

asked Jan 23 '18 at 15:52

muthukumarmuthukumar

10311 silver badge55 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Please edit your question add the full output of ls -l /usr/local/bin/sudo
  
  – Andy Dalton
  Jan 23 '18 at 15:53
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  i have updated above question with ls -l sudo outupt @AndyDalton
  
  – muthukumar
  Jan 23 '18 at 16:02
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Can you add the output of which sudo as well
  
  – CyberJacob
  Jan 23 '18 at 16:04
  

  
  
  
  


• 
  
  
  

  
  4
  

  
  
  
  
  
  

  
  
  Why do you even have a /usr/local/bin/sudo?
  
  – steeldriver
  Jan 23 '18 at 16:04
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  /usr/local/bin/sudo yes i have and that also throwing the set uid error
  
  – muthukumar
  Jan 23 '18 at 16:10
  

  
  
  
  

 | 
show 1 more comment

0

1

I have changed my ubuntu super password by recovery mode
after that i can't run my sudo command in normal user

i have attempted to crack my previous password in Recovery mode
i followed this link to crack my password

>>>$sudo ---In global mode throws me an below error

sudo: /usr/local/bin/sudo must be owned by uid 0 and have the setuid bit set

>>$ ls -l sudo --> permissions

-r-sr-xr-x 1 root root 136808 May 29 2017 sudo


/usr/local/bin$ ./sudo ---> i need this /usr/local/bin ./sudo not working
also throw the below error
sudo: ./sudo must be owned by uid 0 and have the setuid bit set

/usr/bin$ ./sudo --> working fine

usage: sudo -h | -K | -k | -V

My question is

I need to Access my sudo comand from the terminal from anywhere i need to run

Any help will be appreciated

ubuntu sudo setuid

share|improve this question

edited Jan 23 '18 at 16:09

muthukumar

asked Jan 23 '18 at 15:52

muthukumarmuthukumar

10311 silver badge55 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Please edit your question add the full output of ls -l /usr/local/bin/sudo
  
  – Andy Dalton
  Jan 23 '18 at 15:53
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  i have updated above question with ls -l sudo outupt @AndyDalton
  
  – muthukumar
  Jan 23 '18 at 16:02
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Can you add the output of which sudo as well
  
  – CyberJacob
  Jan 23 '18 at 16:04
  

  
  
  
  


• 
  
  
  

  
  4
  

  
  
  
  
  
  

  
  
  Why do you even have a /usr/local/bin/sudo?
  
  – steeldriver
  Jan 23 '18 at 16:04
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  /usr/local/bin/sudo yes i have and that also throwing the set uid error
  
  – muthukumar
  Jan 23 '18 at 16:10
  

  
  
  
  

 | 
show 1 more comment

I have changed my ubuntu super password by recovery mode
after that i can't run my sudo command in normal user

i have attempted to crack my previous password in Recovery mode
i followed this link to crack my password

>>>$sudo ---In global mode throws me an below error

sudo: /usr/local/bin/sudo must be owned by uid 0 and have the setuid bit set

>>$ ls -l sudo --> permissions

-r-sr-xr-x 1 root root 136808 May 29 2017 sudo


/usr/local/bin$ ./sudo ---> i need this /usr/local/bin ./sudo not working
also throw the below error
sudo: ./sudo must be owned by uid 0 and have the setuid bit set

/usr/bin$ ./sudo --> working fine

usage: sudo -h | -K | -k | -V

My question is

I need to Access my sudo comand from the terminal from anywhere i need to run

Any help will be appreciated

ubuntu sudo setuid

share|improve this question

edited Jan 23 '18 at 16:09

muthukumar

asked Jan 23 '18 at 15:52

muthukumarmuthukumar

10311 silver badge55 bronze badges

usage: sudo -h | -K | -k | -V

share|improve this question

edited Jan 23 '18 at 16:09

muthukumar

asked Jan 23 '18 at 15:52

muthukumarmuthukumar

10311 silver badge55 bronze badges

share|improve this question

edited Jan 23 '18 at 16:09

muthukumar

asked Jan 23 '18 at 15:52

muthukumarmuthukumar

10311 silver badge55 bronze badges

asked Jan 23 '18 at 15:52

muthukumarmuthukumar

10311 silver badge55 bronze badges

asked Jan 23 '18 at 15:52

muthukumarmuthukumar

10311 silver badge55 bronze badges

2 Answers
2

active

oldest

votes

4

You shouldn’t have a /usr/local/bin/sudo, that’s what’s breaking things (not the password change). Move it out of the way:

/usr/bin/sudo mv /usr/local/bin/sudo{,2}

and then tell your shell about it:

hash -r

That will restore the sudo functionality you’re used to.

share|improve this answer

answered Jan 23 '18 at 16:07

Stephen KittStephen Kitt

202k2727 gold badges479479 silver badges549549 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  now it throws me an error -bash: /usr/local/bin/sudo: No such file or directory
  
  – muthukumar
  Jan 23 '18 at 16:13
  
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Did you run hash -r? Do you have an alias set?
  
  – Stephen Kitt
  Jan 23 '18 at 16:14
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  What is your PATH?
  
  – DopeGhoti
  Jan 23 '18 at 16:16
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  yes i have run hash -r -- /usr/bin/sudo --> working properly with sudo command
  
  – muthukumar
  Jan 23 '18 at 16:16
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  what does which sudo show?
  
  – mik
  Jan 23 '18 at 22:16
  

  
  
  
  

 | 
show 5 more comments

0

I recently experienced this problem because I ran the following command

sudo chmod -R 777 /usr/*

Unfortunately /usr/bin/sudo is not owned by root and breaks as a result.

To fix the problem I booted into recovery mode which provides a scroll down menu with an option to drop down to a root shell.

From the root shell I ran the following commands:

mount -o remount,rw /

# remounts disks in read write mode

mount --all

chown roo:root /usr/bin/sudo

# return ownership

chmod 4755 /usr/bin/sudo

# fix permissions

reboot

This solved my problems once I logged back in as a user.

share|improve this answer

answered 1 hour ago

Drew J.Drew J.

122 bronze badges

add a comment | 

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4

You shouldn’t have a /usr/local/bin/sudo, that’s what’s breaking things (not the password change). Move it out of the way:

/usr/bin/sudo mv /usr/local/bin/sudo{,2}

and then tell your shell about it:

hash -r

That will restore the sudo functionality you’re used to.

share|improve this answer

answered Jan 23 '18 at 16:07

Stephen KittStephen Kitt

202k2727 gold badges479479 silver badges549549 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  now it throws me an error -bash: /usr/local/bin/sudo: No such file or directory
  
  – muthukumar
  Jan 23 '18 at 16:13
  
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Did you run hash -r? Do you have an alias set?
  
  – Stephen Kitt
  Jan 23 '18 at 16:14
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  What is your PATH?
  
  – DopeGhoti
  Jan 23 '18 at 16:16
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  yes i have run hash -r -- /usr/bin/sudo --> working properly with sudo command
  
  – muthukumar
  Jan 23 '18 at 16:16
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  what does which sudo show?
  
  – mik
  Jan 23 '18 at 22:16
  

  
  
  
  

 | 
show 5 more comments

4

You shouldn’t have a /usr/local/bin/sudo, that’s what’s breaking things (not the password change). Move it out of the way:

/usr/bin/sudo mv /usr/local/bin/sudo{,2}

and then tell your shell about it:

hash -r

That will restore the sudo functionality you’re used to.

share|improve this answer

answered Jan 23 '18 at 16:07

Stephen KittStephen Kitt

202k2727 gold badges479479 silver badges549549 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  now it throws me an error -bash: /usr/local/bin/sudo: No such file or directory
  
  – muthukumar
  Jan 23 '18 at 16:13
  
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Did you run hash -r? Do you have an alias set?
  
  – Stephen Kitt
  Jan 23 '18 at 16:14
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  What is your PATH?
  
  – DopeGhoti
  Jan 23 '18 at 16:16
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  yes i have run hash -r -- /usr/bin/sudo --> working properly with sudo command
  
  – muthukumar
  Jan 23 '18 at 16:16
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  what does which sudo show?
  
  – mik
  Jan 23 '18 at 22:16
  

  
  
  
  

 | 
show 5 more comments

You shouldn’t have a /usr/local/bin/sudo, that’s what’s breaking things (not the password change). Move it out of the way:

/usr/bin/sudo mv /usr/local/bin/sudo{,2}

and then tell your shell about it:

hash -r

That will restore the sudo functionality you’re used to.

share|improve this answer

answered Jan 23 '18 at 16:07

Stephen KittStephen Kitt

202k2727 gold badges479479 silver badges549549 bronze badges

/usr/bin/sudo mv /usr/local/bin/sudo{,2}

hash -r

share|improve this answer

answered Jan 23 '18 at 16:07

Stephen KittStephen Kitt

202k2727 gold badges479479 silver badges549549 bronze badges

answered Jan 23 '18 at 16:07

Stephen KittStephen Kitt

202k2727 gold badges479479 silver badges549549 bronze badges

answered Jan 23 '18 at 16:07

Stephen KittStephen Kitt

202k2727 gold badges479479 silver badges549549 bronze badges

0

I recently experienced this problem because I ran the following command

sudo chmod -R 777 /usr/*

Unfortunately /usr/bin/sudo is not owned by root and breaks as a result.

To fix the problem I booted into recovery mode which provides a scroll down menu with an option to drop down to a root shell.

From the root shell I ran the following commands:

mount -o remount,rw /

# remounts disks in read write mode

mount --all

chown roo:root /usr/bin/sudo

# return ownership

chmod 4755 /usr/bin/sudo

# fix permissions

reboot

This solved my problems once I logged back in as a user.

share|improve this answer

answered 1 hour ago

Drew J.Drew J.

122 bronze badges

add a comment | 

0

I recently experienced this problem because I ran the following command

sudo chmod -R 777 /usr/*

Unfortunately /usr/bin/sudo is not owned by root and breaks as a result.

To fix the problem I booted into recovery mode which provides a scroll down menu with an option to drop down to a root shell.

From the root shell I ran the following commands:

mount -o remount,rw /

# remounts disks in read write mode

mount --all

chown roo:root /usr/bin/sudo

# return ownership

chmod 4755 /usr/bin/sudo

# fix permissions

reboot

This solved my problems once I logged back in as a user.

share|improve this answer

answered 1 hour ago

Drew J.Drew J.

122 bronze badges

add a comment | 

I recently experienced this problem because I ran the following command

sudo chmod -R 777 /usr/*

Unfortunately /usr/bin/sudo is not owned by root and breaks as a result.

To fix the problem I booted into recovery mode which provides a scroll down menu with an option to drop down to a root shell.

From the root shell I ran the following commands:

mount -o remount,rw /

# remounts disks in read write mode

mount --all

chown roo:root /usr/bin/sudo

# return ownership

chmod 4755 /usr/bin/sudo

# fix permissions

reboot

This solved my problems once I logged back in as a user.

share|improve this answer

answered 1 hour ago

Drew J.Drew J.

122 bronze badges

sudo chmod -R 777 /usr/*

mount -o remount,rw /

# remounts disks in read write mode

mount --all

chown roo:root /usr/bin/sudo

# return ownership

chmod 4755 /usr/bin/sudo

# fix permissions

reboot

share|improve this answer

answered 1 hour ago

Drew J.Drew J.

122 bronze badges

answered 1 hour ago

Drew J.Drew J.

122 bronze badges

answered 1 hour ago

Drew J.Drew J.

122 bronze badges