Zero-Day Advisory

Fortinet Discovers IBM ILOG CPLEX Optimization Studio Insecure Library Loading Vulnerability

Summary

Fortinet's FortiGuard Labs has discovered an Insecure Library Loading vulnerability in IBM ILOG CPLEX Optimization Studio.


IBM ILOG CPLEX Optimization Studio uses powerful algorithms to solve Model business issues mathematically. It can produce precise and logical decisions. The mathematical programming technology of CPLEX Optimizer enables decision optimization for improving efficiency, reducing costs and increasing profitability.


IBM ILOG CPLEX Optimization Studio is susceptible to an Insecure Library Loading 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

Apply the workaround provided by IBM.

Timeline

Fortinet reported the vulnerability to IBM on November 26, 2019.

IBM confirmed the vulnerability and posted an advisory on January 19, 2020.

Acknowledgement

This vulnerability was discovered by Honggang Ren 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.