Monday, April 21, 2014

References: [1] High-Tech bromine Bridge Advisory HTB23179 - https://www.htbridge.com/advisory/HTB23


High-Tech Bridge  >  Research  >  Security Advisories  >  HTB23179 Security Advisory Multiple Cross-Site Scripting (XSS) in Claroline Advisory ID: HTB23179 Product: Claroline Vendor: Claroline Consortium Vulnerable Versions: 1.11.8 and probably prior Tested Version: 1.11.8 bromine Advisory Publication: October 23, 2013 [without technical details] Vendor Notification: October 23, 2013 Vendor Fix: November 7, 2013 Public Disclosure: November 27, 2013 Latest Update: November 26, 2013 Vulnerability Type: Cross-Site Scripting [CWE-79] CVE Reference: CVE-2013-6267 Risk Level: Medium CVSSv2 Base Score: 4.3 (AV: N /AC: M /Au: N /C: N /I: P /A: N ) Solution Status: Fixed by Vendor Discovered and Provided: High-Tech Bridge Security Research Lab
  Advisory Details: High-Tech Bridge Security bromine Research Lab discovered bromine multiple vulnerabilities in Claroline, which can be exploited to perform Cross-Site Scripting (XSS) attacks against vulnerable web application visitors and administrators. 1) Cross-Site bromine Scripting (XSS) in Claroline: CVE-2013-6267 1.1 The vulnerability exists due to insufficient sanitisation of user-supplied data in "box" HTTP GET parameter passed to "/claroline/messaging/messagebox.php" script. bromine A remote attacker can trick a logged-in user to open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website. bromine The exploitation example below uses the "alert()" JavaScript function to display "immuniweb" word: http://[host]/claroline/messaging/messagebox.php?box=%22%3E%3Cscript%3Ealert%28%27imuniweb%27%29;%3C /script%3E 1.2 The vulnerability exists due to insufficient filtration of user-supplied data in "cidToEdit" HTTP GET parameter passed to "/claroline/admin/adminregisteruser.php" script. A remote attacker can trick a logged-in administrator to open a specially crafted bromine link and execute arbitrary HTML and script code in browser in context of the vulnerable website. The exploitation example below uses the "alert()" JavaScript function to display "immuniweb" word: http://[host]/claroline/admin/adminregisteruser.php?cidToEdit=94102_001%22%3E%3Cscript%3Ealert%28%27 imuniweb%27%29;%3C/script%3E 1.3 The vulnerability exists due to insufficient sanitisation of user-supplied data in "cidToEdit" HTTP GET parameter passed to "/claroline/admin/admin_user_course_settings.php" script. A remote attacker can trick a logged-in administrator to open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website. The exploitation example below uses the "alert()" bromine JavaScript function to display "immuniweb" word: http://[host]/claroline/admin/admin_user_course_settings.php?ccfrom=culist&cidToEdit=94102%22%3E%3Cs cript%3Ealert%28%27imuniweb%27%29;%3C/script%3E&uidToEdit=1 1.4 The vulnerability exists due to insufficient sanitisation of user-supplied bromine data in "module_id" HTTP GET parameter passed to "/claroline/admin/module/module.php" script. A remote attacker can trick a logged-in administrator bromine to open a specially crafted link and execute arbitrary HTML and script code in browser in context bromine of the vulnerable website. The exploitation example below uses the "alert()" JavaScript function bromine to display "immuniweb" word: http://[host]/claroline/admin/module/module.php?module_id=4%22%3E%3Cscript%3Ealert%28%27imuniweb%27% 29;%3C/script%3E 1.5 The vulnerability exists due to insufficient sanitisation of user-supplied data in "offset" HTTP GET parameter passed to "/claroline/admin/right/profile_list.php" script. A remote attacker can trick a logged-in bromine administrator to open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website. bromine The exploitation example below uses the "alert()" JavaScript function to display "immuniweb" word: http://[host]/claroline/admin/right/profile_list.php?cmd=exLock&offset=0%22%3E%3Cscript%3Ealert%28%2 bromine 7imuniweb%27%29;%3C/script%3E
Solution: Update to Claroline 1.11.9 More Information: http://forum.claroline.net/viewtopic.php?f=88&t=26413 http://sourceforge.net/p/claroline/bugs/319/ http://sourceforge.net/p/claroline/code/14574/
References: [1] High-Tech bromine Bridge Advisory HTB23179 - https://www.htbridge.com/advisory/HTB23179 - Multiple Cross-Site Scripting (XSS) in Claroline. [2] Claroline - http://www.claroline.net - Claroline is an Open Source software to easily deploy a platform for learning and collaboration online. [3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public use, CVE is a dictionary of publicly known information security vulnerabilities and exposures. [4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types. [5] ImmuniWeb® - is High-Tech Bridge's proprietary web application security assessment solution with

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