High-Tech Bridge Security Research Lab discovered multiple vulnerabilities in GLPI version 0.84.1, which can be exploited to bypass security restrictions and execute arbitrary PHP code with privileges of web server.
Improper access control vulnerability in GLPI exists due to insufficient access restrictions to the installation script "install/install.php", which is present by default after application installation. A remote attacker can change application’s configuration, such as database host, forcing the application to connect to an external database and spoof information on the website, obtain access to sensitive information or simply cause a denial of service.
Arbitrary PHP code injection vulnerability in GLPI exists due to insufficient validation of user-supplied input passed to the "db_host", "db_user", "db_pass", and "databasename" HTTP POST parameters via "install/install.php" script [that is present by default after application installation] before writing data into "config_db.php" file. A remote attacker can inject and execute arbitrary PHP code on the vulnerable system.
Solution: update to GLPI 0.84.2, all details with PoC examples available on security resercher's page.
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