University of Waterloo
200 University Ave W, Waterloo, ON
N2L 3G1
Phone: (519) 888-4567
Staff and Faculty Directory
Contact the Department of Electrical and Computer Engineering
Visit our COVID-19 information website to learn how Warriors protect Warriors.
Mark Stephen Dittmer
The UNIX Process Identity Crisis: A Standards-Driven Approach to Setuid
Mahesh Tripunitara
In this talk, I will present results from a standards-driven analysis of the setuid family of system calls. Setuid is a widely-used system for privilege-management, and some setuid functions are standardized by POSIX. My analysis includes an assessment of the quality of the standard, and a verification of five setuid implementations with respect to the standard. In the talk, I will discuss specific ways in which both the standard and implementations contribute to problems with setuid's usability and correctness. Towards the amelioration of these problems, I will discuss an alternative interface that wraps setuid, and argue for its superior usability and correctness.
University of Waterloo
200 University Ave W, Waterloo, ON
N2L 3G1
Phone: (519) 888-4567
Staff and Faculty Directory
Contact the Department of Electrical and Computer Engineering
The University of Waterloo acknowledges that much of our work takes place on the traditional territory of the Neutral, Anishinaabeg and Haudenosaunee peoples. Our main campus is situated on the Haldimand Tract, the land granted to the Six Nations that includes six miles on each side of the Grand River. Our active work toward reconciliation takes place across our campuses through research, learning, teaching, and community building, and is centralized within our Indigenous Initiatives Office.