Back Office Software for Sharp POS Terminals. Catering for the needs of retail and hospitality businesses, SharpLynx has been developed as a modular software solution with options from simple program management and sales analysis through to multi-location stock control.
SharpLynx suffers from an elevation of privileges vulnerability which can be used by a simple authenticated user that can change the executable file with a binary of choice. The vulnerability exist due to the improper permissions, with the 'C' flag (Change) for 'Authenticated Users' group.