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HistoryJul 19, 2008 - 12:00 a.m.

[DSECRG-08-030] Claroline 1.8.9 Multiple Security Vulnerabilities

2008-07-1900:00:00
vulners.com
18

Digital Security Research Group [DSecRG] Advisory #DSECRG-08-030

Application: Claroline eLearning and eWorking platform
Versions Affected: 1.8.9
Vendor URL: http://www.claroline.net/
Bug: Multiple XSS, Phishing Through URL Redirection, Change User Password XSRF Vulnerability
Exploits: YES
Reported: 04.07.2008
Vendor Response: 07.07.2008
Solution: YES
Date of Public Advisory: 18.07.2008
Author: Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)

Description


Claroline system has multiple security vulnerabilities:

  1. Multiple Linked XSS
  2. Phishing Through URL Redirection
  3. Change User Password XSRF Vulnerability

Details


  1. Multiple linked XSS vulnerabilities found. Attacker can inject XSS in URL string

1.1 Linked XSS vulnerabilities found in scripts:

claroline/announcements/announcements.php
claroline/calendar/agenda.php
claroline/course/index.php
claroline/course_description/index.php
claroline/document/document.php
claroline/exercise/exercise.php
claroline/group/group_space.php
claroline/phpbb/newtopic.php
claroline/phpbb/reply.php
claroline/phpbb/viewtopic.php
claroline/wiki/wiki.php
claroline/work/work.php

Attacker can inject XSS in URL string.

Example:

http://[server]/[installdir]/claroline/course/index.php?"><script>alert('DSecRG XSS')</script>
http://[server]/[installdir]/claroline/phpbb/newtopic.php?"><script>alert('DSecRG XSS')</script>

1.2 Linked XSS vulnerability found in claroline/document/rqmkhtml.php

GET parameter "cwd"

Example:

http://[server]/[installdir]/claroline/document/rqmkhtml.php?cmd=rqMkHtml&cwd="><script>alert('DSecRG XSS')</script>


  1. Phishing Through URL Redirection

Vulnerability found in script /claroline/redirector.php

GET parameter "url"

Example:

http://[server]/[installdir]/claroline/redirector.php?url=http://evilsite.com


  1. Change User Password XSRF Vulnerability

Previous password not required to set a new password.

Using XSS vulnerabilities, attacker can change user password.

Solution


Vendor fix this flaw on 16.07.2008. New version 1.8.10 can be downloaded here:

http://downloads.sourceforge.net/claroline/claroline1810.tar.gz
http://downloads.sourceforge.net/claroline/claroline1810.zip

About


Digital Security is leading IT security company in Russia, providing information security consulting, audit and
penetration testing services, risk analysis and ISMS-related services and certification for ISO/IEC 27001:2005 and PCI DSS
standards. Digital Security Research Group focuses on web application and database security problems with vulnerability
reports, advisories and whitepapers posted regularly on our website.

Contact: research [at] dsec [dot] ru
http://www.dsec.ru (in Russian)