Zero-Day Advisory

Fortinet Discovers QIWI Monitoring Terminal DLL Preloading Vulnerability


Fortinet's FortiGuard Labs has discovered a DLL preloading vulnerability in QIWI Monitoring Terminal.

The QIWI Monitoring Terminal program is designed to monitor the status of self-service automata. This program has several advantages over monitoring through Internet and using a mobile phone such as, the ability to simultaneously view information on machines belonging to different subagents, ability to customize the appearance of the program, the ability to create your own conditions (filters) to display the monitoring information, as well as the use of several filters simultaneously, etc.

QIWI Monitoring Terminal for Windows is susceptible to a DLL preloading vulnerability. The issue occurs when the application looks to load a DLL for execution and an attacker provides a malicious DLL to use instead. The application generally follows a specific search path to locate the DLL. The vulnerability can be exploited by a simple file write (or potentially an over-write) which results in a foreign DLL running under the context of the application.


No vendor patch is available.


Fortinet reported the vulnerability to Qiwi on July 18, 2017.

Qiwi confirmed the vulnerability on July 19, 2017.


This vulnerability was discovered by Kushal Arvind Shah of Fortinet's FortiGuard Labs.

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.