pCO sistema is the solution CAREL offers its customers for managing HVAC/R applications and systems. It consists of programmable controllers, user interfaces, gateways and communication interfaces, remote management systems to offer the OEMs working in HVAC/R a control system that is powerful yet flexible, can be easily interfaced to the more widely-used Building Management Systems, and can also be integrated into proprietary supervisory systems.
The device suffers from an unauthenticated arbitrary file disclosure vulnerability. Input passed through the 'file' GET parameter through the 'logdownload.cgi' Bash script is not properly verified before being used to download log files. This can be exploited to disclose the contents of arbitrary and sensitive files via directory traversal attacks.