PT-2014-49: Stack-based buffer overflow in Honeywell EPKS
Severity level: High
Impact: Remote code execution, denial of service
Access Vector: Remote
Base Score: 9.3
CVE: not assigned
Honeywell Experion PKS is a cost-effective open control and safety system that expands the role of distributed control. Experion provides a safe, robust, scalable, plant-wide system with unprecedented connectivity through all levels of the plant.
The specialists of the Positive Research center have detected a Stack-based buffer overflow vulnerability in Honeywell EPKS.
Stack-based buffer overflow was discovered in hscodbcn.exe module when using function unmarshallCharArray () for copying data from packet in stack buffer of static size without checking input which could lead to possible remote code execution or denial of service.
How to fix
Update your sofware up to the latest version
06.03.2014 - Vendor gets vulnerability details
02.06.2014 - Vendor releases fixed version and details
18.11.2014 - Public disclosure
The vulnerability was detected by Alexander Tlyapov, Positive Research Center (Positive Technologies Company)
Reports on the vulnerabilities previously discovered by Positive Research: