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How do I verify a password in Solaris 9 default install without using it ?  I need to script this.

Posted on 2008-10-01
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Last Modified: 2013-11-13
Long story short, I create a LOT of temp accounts for short term programmers from other lands.

What is the easiest way to verify they have an account and the password works WITHOUT using it.

I would like to create a little script that zips though.  

su  does not seem to behave well in a script :)


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Question by:itguy411
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9 Comments
 
LVL 48

Expert Comment

by:Tintin
ID: 22618692
Do you know what the password for the accounts is or will you have to guess it?
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Author Comment

by:itguy411
ID: 22619201
I know it.  

I create it

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Accepted Solution

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Tintin earned 300 total points
ID: 22619344
In that case, you can verify the account exists by doing

grep username: /etc/passwd

for the password, you need to extract the encrypted password from /etc/shadow and then run it through the following perl script, eg:

chkpass.pl  somepasswd a3bL.vfoZZTk6
#!/usr/bin/perl
my ($pass,$encrypted) = @ARGV;
print "Match\n" if (crypt($pass,$encrypted) eq $encrypted);

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Expert Comment

by:Duncan Roe
ID: 22619353
If using shadow passwords, you need to be root because you have to verify passwords against /etc/shadow. Then you can run through /etc/passwd. Might be best to do with a C program - doing it in a script could be a bit of an ask
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Expert Comment

by:Duncan Roe
ID: 22619364
Ok perl will do it
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Expert Comment

by:omarfarid
ID: 22620125
if ftp is enabled for these users (which is the default) then you may use ftp client to access and get some file. e.g. you can use


wget ftp://servername/etc/hosts --ftp-user=username --ftp-password=password

here link to download wget if you don't have it already installed:

ftp://ftp.sunfreeware.com/pub/freeware/sparc/9/wget-1.11.4-sol9-sparc-local.gz

please check the site for dependencies

(I know, it is not the best way to do so)
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LVL 6

Expert Comment

by:peter991
ID: 22622219
It could be a risk running a script or command with username/password as an argument.
If someone makes an '$>ps -ef' during this short time they will probably see a password or worse, username and password.

I wish I had and waterproof answer but at the moment I don't.
At least you could run these tests on a closed machine where only you have access?
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Expert Comment

by:omarfarid
ID: 22622425
the test can be run from a remote system where no users are using it
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Author Closing Comment

by:itguy411
ID: 31502136
This does work  
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