CODEWITHSUNDEEP
python-3.xactive-directoryldap
John Doe
John Doe

Reputation: 75

Unable to change user's password via ldap3 Python3

Whenever I try to change someone's password via ldap3 library I get the following error:

{'type': 'modifyResponse', 'result': 53, 'message': '0000001F: SvcErr: DSID-031A12D2, problem 5003 (WILL_NOT_PERFORM), data 0\n\x00', 'referrals': None, 'description': 'unwillingToPerform', 'dn': ''}

This error usually occurs because of the two conditions: either user is trying to modify the password through the unencrypted connection or the password is being sent with the incorrect encoding. My SSL connection is fine (at least it seems to be):

print(connection)
>>> ldaps://DC1.DOMAIN.LOCAL:636 - ssl - user: DOMAIN\admin - not lazy - bound - open - <local: 172.16.10.2:49230 - remote: 172.16.10.254:636> - tls not started - listening - SyncStrategy - internal decoder

I tried to encode the string I'm trying send to the LDAP server, but .encode('utf-16le') didn't do the trick. Any other workarounds?

I have a test domain environment with Windows Server 2012 R2 as a domain controller, and the code I'm trying to change the password with is present below.

import ssl
from ldap3 import *

tls_configuration = Tls(validate=ssl.CERT_REQUIRED, version=ssl.PROTOCOL_TLSv1_2)
s = Server('DC1.domain.local', get_info=ALL, use_ssl=True, tls=tls_configuration)
password = 'mypasswordhere'
c = Connection(s, user="DOMAIN\\admin", password=password)
c.open()
c.bind()

user = "CN=Dummy Dumass,OU=Automatically Generated,OU=Staff,OU=RU,DC=DOMAIN,DC=LOCAL"

c.modify(user, {
    'unicodePwd': [(MODIFY_REPLACE, ['New12345'])]
})

print(c.result)
c.unbind()

Upvotes: 6

Views: 11745

Answers (3)

Hamed
Hamed

Reputation: 71

The mentioned code is working for me, but changing password is only possible while using ssl. Change the server definition line as below:

ldap_server = ldap3.Server(SERVER, get_info=ldap3.ALL, use_ssl=True)

Upvotes: 1

Tamas Tobi
Tamas Tobi

Reputation: 86

This code is working with Windows 2012 R2 AD:

pip install ldap

#!/usr/bin/python

import ldap3

SERVER='127.0.0.1'
BASEDN="DC=domain,DC=com"
USER="[email protected]"
CURREENTPWD="current_password"
NEWPWD="new_password"

SEARCHFILTER='(&(|(userPrincipalName='+USER+')(samaccountname='+USER+')(mail='+USER+'))(objectClass=person))'

USER_DN=""

ldap_server = ldap3.Server(SERVER, get_info=ldap3.ALL)
conn = ldap3.Connection(ldap_server, USER, CURREENTPWD, auto_bind=True)
conn.start_tls()

print conn

conn.search(search_base = BASEDN,
         search_filter = SEARCHFILTER,
         search_scope = ldap3.SUBTREE,
         attributes = ['cn', 'givenName'],
         paged_size = 5)

for entry in conn.response:
    if entry.get("dn") and entry.get("attributes"):
        if entry.get("attributes").get("cn"):
            USER_DN=entry.get("dn")

print USER_DN
print ldap3.extend.microsoft.modifyPassword.ad_modify_password(conn, USER_DN, NEWPWD, CURREENTPWD,  controls=None)

Upvotes: 2

cannatag
cannatag

Reputation: 1588

ldap3 contains a specific method for changing AD password, use the following code instead of c.modify():

c.extend.microsoft.modify_password(user, new_password)

Upvotes: 9

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