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TCExam 11.2.011 SQL Injection

TCExam 11.2.011 SQL Injection
Posted Jul 14, 2011
Authored by LiquidWorm | Site zeroscience.mk

TCExam versions 11.2.011 and below suffer from multiple remote SQL injection vulnerabilities.

tags | exploit, remote, vulnerability, sql injection
SHA-256 | 914e1468f043c743fbcb3539d34a062ed28fec35ba1be0ed6dab33cd0deb9e05

TCExam 11.2.011 SQL Injection

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TCExam <=11.2.011 Multiple SQL Injection Vulnerabilities


Vendor: Tecnik.com s.r.l.
Product web page: http://www.tcexam.org
Affected version: 11.2.009, 11.2.010 and 11.2.011

Summary: TCExam is a FLOSS system for electronic exams (also know as
CBA - Computer-Based Assessment, CBT - Computer-Based Testing or e-exam)
that enables educators and trainers to author, schedule, deliver, and
report on quizzes, tests and exams.

Desc: Input passed via multiple parameters to multiple scripts is not
properly sanitised before being used in SQL queries. This can be exploited
to manipulate SQL queries by injecting arbitrary SQL code.

Tested on: Microsoft Windows XP Professional SP3 (EN)
Apache 2.2.14 (Win32)
PHP 5.3.1
MySQL 5.1.41


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
liquidworm gmail com
Zero Science Lab


High five to Dr. Nicola Asuni!


Vendor status:

[09.07.2011] Vulnerability discovered.
[10.07.2011] Initial contact with the vendor.
[11.07.2011] Vendor responds asking more details.
[11.07.2011] Sent details to vendor.
[12.07.2011] Vendor confirms the issues.
[12.07.2011] Working with the vendor.
[13.07.2011] Vendor releases version 11.2.012 to address these issues.
[13.07.2011] Coordinated public security advisory released.


Advisory ID: ZSL-2011-5026
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2011-5026.php

Vendor Patch: http://sourceforge.net/projects/tcexam/files/tcexam_11_2_012.zip
Vendor Changelog: http://sourceforge.net/projects/tcexam/files/CHANGELOG.TXT



09.07.2011


--


********** SQL Injection (script name / parameter(s) / http method) **********

1. /admin/code/tce_edit_group.php (group_id) - POST
2. /admin/code/tce_edit_module.php (module_id, module_user_id) - POST
3. /admin/code/tce_edit_rating.php (test_id) - POST
4. /admin/code/tce_edit_subject.php (subject_module_id) - POST
5. /admin/code/tce_edit_test.php (test_id) - POST
6. /admin/code/tce_select_users.php (new_group_id) - POST
7. /admin/code/tce_show_all_questions.php (subject_module_id) - POST
8. /admin/code/tce_show_result_questions.php (orderdir, order_field) - POST, GET
9. /admin/code/tce_show_result_user.php (test_id) - POST

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


SQLi: POST http://localhost/tcexam/admin/code/{script}.php HTTP/1.0
- {parameter}={value}[SQLi]
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