topic Re: How to break the root password in Operating System - HP-UX

How to break the root password

M.P.Chandrasekar — Thu, 10 Jun 2010 14:17:57 GMT

hi all,

is there any way i can break the root password in HP-UX? Because no one knows that password.

Re: How to break the root password

singh sanjeev — Thu, 10 Jun 2010 14:43:09 GMT

But you can change it single user mode. if do not remember it..

Or if you have equal privilege root account can change the password of root.

Re: How to break the root password

Pete Randall — Thu, 10 Jun 2010 14:48:34 GMT

As long as the system is untrusted, you can boot into single user mode and you will be automatically logged in as root. Then change the password to something you can remember. If the system is trusted, then the procedure becomes a bit more complex.

Pete

Re: How to break the root password

SoorajCleris — Thu, 10 Jun 2010 14:57:15 GMT

Nothing other than single usermod...

Explanations above.. If you are not enabled passwd check in single usermod.

Regards,
Sooraj

Re: How to break the root password

madhuchakkaravarthy — Thu, 10 Jun 2010 15:40:26 GMT

hi

boot in to single user mode

if its non trusted sys

1. passwd root
2.Boot the system in to multi user mode.

if its trusted sys
run fsck before mounting
1. mount /usr
2. /usr/lbin/modprpw -k root
3. /usr/sam/lbin/usermod.sam -F -p "" root
4.passwd root
5.Boot the system in to multi user mode

regards

MC

Re: How to break the root password

madhuchakkaravarthy — Thu, 10 Jun 2010 15:44:14 GMT

hi

left some other option

#/usr/lbin/tsconvert -r
#/sbin/passwd root

but make a note

This will expire all other accounts password and /usr/lbin/tsconvert needs to be run again.

if it is production server dont perfer this option

regards

MC

Re: How to break the root password

Steven E. Protter — Thu, 10 Jun 2010 16:10:32 GMT

Shalom,

Yes.

You take the file the password in, /etc/passwd or the /etc/shadow or /tcb files and copy them to a temp directory.

Then you run crack on them.

It uses enormous cpu resources, but will eventually crack word based passwords.

If the password is truly random, it won't work.

Boot to single user mode and run the passwd command to reset.

Otherwise you are SOL.

SEP

Re: How to break the root password

Norm Diederich — Fri, 11 Jun 2010 14:23:19 GMT

Just a reminder, single user mode requires access to the console either directly or one of the various system managemtn interfaces.

Regards,
Norm

Re: How to break the root password

sudheerch — Sat, 12 Jun 2010 04:25:55 GMT

we can change password in single user mode with the command #passwd

if the server is trusted
go to single user mode remove the password content (don't remove ":"after the password content) of the file #vi /tcb/files/auth/r/root
and restart the server in the single user mode and then change the password using #passwd command

Re: How to break the root password

Suraj K Sankari — Sat, 12 Jun 2010 06:02:14 GMT

Hi,
>>is there any way i can break the root password in HP-UX? Because no one knows that password

Are you able to login into the server?
Is there any account who is having sudo to root access ?
Is you server is trusted or un-trusted ?
Is PA-RISC or Itanium ?
For PA-RISC you can reset the root passwd in single user. but for Itanium you need to reboot through DVD then from recovery mode you can change the root passwd.

Suraj

Re: How to break the root password

Taifur — Sat, 12 Jun 2010 07:48:19 GMT

Hi,

U can break root password by accessing server in single user mode.

Cheers..
Taifur