SQL-Injections in Mapbender
During a penetration test RedTeam Pentesting discovered multiple
SQL-Injections in Mapbender. A remote attacker is able to execute
arbitrary SQL commands and therefore can get e.g. valid usernames and
password hashes of the Mapbender users.
Affected Versions: 2.4.4 (verified), probably older versions, too
Fixed Versions: 2.4.5 rc1
Vulnerability Type: SQL-Injection
Vendor-Status: informed, fixed version released
"Mapbender is the software and portal site for geodata management of OGC
OWS architectures. The software provides web technology for managing
provides a data model and interfaces for displaying, navigating and
querying OGC compliant map services. The Mapbender framework
furthermore provides authentication and authorization services, OWS
proxy functionality, management interfaces for user, group and service
administration in WebGIS projects."
(from the vendor's homepage)
Due to the lack of input validation, an attacker is able to inject
SQL-commands in many PHP scripts of Mapbender. This vulnerability can be
exploited regardless of PHP magic quotes. For demonstration purposes, the
injection into the "gaz" variable of the file
http/php/mod_gazetteer_edit.php is shown.
The two relevant lines are:
$sql = "SELECT * FROM gazetteer WHERE gazetteer_id = ".$_REQUEST["gaz"];
$res = db_query($sql);
The user input $_REQUEST["gaz"] goes unfiltered, unquoted and unescaped
into an SQL statement. As no prepared statements are used here, an
attacker can execute arbitrary SQL commands.
There is no need to use quotes in the SQL statement for an attacker, so
PHP magic quotes do not help.
Proof of Concept
The following request retrieves the first username and password hash
from the Mapbender database.
http://www.example.com/php/mod_gazetteer_edit.php?gaz= 1 LIMIT 0 UNION
(SELECT char(65), char(65), char(65), char(65), char(65), char(65),
mb_user_name, char(65), mb_user_password, char(65) from mb_user
The vulnerability is fixed in release 2.4.5 rc1.
As an attacker is able to e.g. get the password hashes of the
administrators and other users, the risk is estimated as high.
2007-12-14 Problem identified during a penetration test
2008-01-09 Customer approves contacting of Mapbender developers
2008-01-17 CVE number assigned
2008-03-10 Vendor releases fixed version
2008-03-11 Advisory released
2009-05-08 Updated Advisory URL
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