ChangePasswordExternal

Introduction

The package open-xchange-passwordchange-script allows you to run a command to change a password in an external subsystem like e.g. LDAP.

Install on OX AppSuite

Debian GNU/Linux 11.0

Add the following entry to /etc/apt/sources.list.d/open-xchange.list if not already present:

deb https://software.open-xchange.com/products/stable/DebianBullseye/ /
# if you have a valid maintenance subscription, please uncomment the 
# following and add the ldb account data to the url so that the most recent
# packages get installed
# deb https://[CUSTOMERID:PASSWORD]@software.open-xchange.com/products/stable/updates/DebianBullseye/ /

and run

$ apt-get update
$ apt-get install open-xchange-passwordchange-script

Debian GNU/Linux 12.0

Add the following entry to /etc/apt/sources.list.d/open-xchange.list if not already present:

deb https://software.open-xchange.com/products/stable/DebianBookworm/ /
# if you have a valid maintenance subscription, please uncomment the 
# following and add the ldb account data to the url so that the most recent
# packages get installed
# deb https://[CUSTOMERID:PASSWORD]@software.open-xchange.com/products/stable/updates/DebianBookworm/ /

and run

$ apt-get update
$ apt-get install open-xchange-passwordchange-script

Example

In /opt/open-xchange/etc/change_pwd_script.properties add this line:

com.openexchange.passwordchange.script.shellscript=/bin/pwchange.pl

Example Script 1

This example script calls saslpasswd to change the password in the sasldb:

#! /usr/bin/perl -w -T
#
# perlsec(1) for security related perl programming
#
use Getopt::Long;
use strict;

my $user;
my $pw;
my $result;
my $cid;
my $oldpassword;
my $userid;

open(LOG, '>>/var/log/pw.log'); 

sub log_error {
       my $errorstring=$_[0];
       print LOG "Error: $errorstring\n";
       die "$errorstring";
}
# secure env
$ENV{'PATH'} = "";
$ENV{'ENV'} = "";

$result = GetOptions ("username=s" => \$user,
                     "cid" => \$cid,
                     "userid" => \$userid,
                     "oldpassword" => \$oldpassword,
                     "newpassword=s" => \$pw);

$user || &log_error("missing parameter username");
print LOG "changing password for user $user\n";
$pw || &log_error("missing parameter newpassword");

my $usersav = $user;

# add a taint check
if ($user =~ /^([-\@\w.]+)$/) {
 $user = $1;                     # $data now untainted
} else {
 &log_error("Bad data in '$user'");
}

die "Can't fork: $!" unless defined(my $pid = open(KID, "|-"));
if ($pid) {           # parent
 print KID $pw;
 close KID;
} else {
 exec '/usr/bin/sudo', '/usr/sbin/saslpasswd2', '-p', "$user"
   or &log_error("can't exec myprog: $!");
}
close(LOG);

Example Script 2

The following script uses ldappasswd to change the password in an LDAP server.

#!/bin/bash
ldappasswd -h my_ldap_server -D "uid=$4,ou=people,dc=example,dc=com" -w $8 \
   -s ${10} "uid=$4,ou=people,dc=example,dc=com"

Example Script 3

The following script uses open-xchange-passwordchange-script data to change the password within LDAP

#!/usr/bin/perl -w     
# Begin LDAP Stuff
       use Net::LDAP;
       use Net::LDAP::Extension::SetPassword;
my $cid = $ARGV[1];
my $userid = $ARGV[5];
my $oldpw = $ARGV[7];
my $hostname= 'localhost';
my $rootdn= 'cn=Administrator,dc=example,dc=com';
my $userbind= 'ou=People,dc=example,dc=com';
my $adminpasswd='system';
my $name= $ARGV[3];
my $newpasswd= $ARGV[9];
my $ldap = Net::LDAP->new("$hostname")
or die "Host not found: $!";

open(LOG, '>>/var/log/open-xchange/pw.log');  
 
sub log_error {
      my $errorstring=$_[0];
      print LOG "Error: $errorstring\n";
      die "$errorstring";
}
 
$name || &log_error("missing parameter username");
print LOG "changing password for $ARGV[2]: $name with $ARGV[0]: $cid and $ARGV[4]: $userid\n";
$newpasswd || &log_error("missing parameter newpassword");
 
 $ldap->bind( "$rootdn", password => "$adminpasswd" );

my $mesg = $ldap->set_password(
   newpasswd => "$newpasswd",
   user      => "uid=$name,$userbind"
   );
 
  die "error: ", $mesg->code(), ": ", $mesg->error() if ( $mesg->code() );
  close(LOG);