Fortinet Discovers QIWI Protection DLL Preloading Vulnerability
Summary
Fortinet's FortiGuard Labs has discovered a DLL preloading vulnerability in QIWI Protection .
QIWI Protection software is designed to increase security when working with the QIWI System. The application allows you to generate a certificate for authorization on QIWI sites and generate authorization data of the person for QIWI Cashier software.
QIWI Protection 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.
Solutions
No vendor patch is available.
Timeline
Fortinet reported the vulnerability to Qiwi on July 18, 2017.
Qiwi confirmed the vulnerability on July 19, 2017.