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Breaking KASLR on mobile devices without any use of cache memory
, Article 6th Workshop on Attacks and Solutions in Hardware Security, ASHES 2022, co-located with the ACM Conference on Computer and Communications Security, CCS 2022, 11 November 2022 ; 2022 , Pages 45-54 ; 9781450398848 (ISBN) ; Esfahani, M ; Bhattacharya, S ; Aref, M. R ; Soleimany, H ; ACM SIGSAC ; Sharif University of Technology
Association for Computing Machinery, Inc
2022
Abstract
Microarchitectural attacks utilize the performance optimization constructs that have been studied over decades in computer architecture research and show the vulnerability of such optimizations in a realistic framework. One such highly performance driven vulnerable construct is speculative execution. In this paper, we focus on the problem of breaking the kernel address-space layout randomization (KASLR) on modern mobile devices without using cache memory as a medium of observation. However, there are some challenges to breaking KASLR on ARM CPUs. The first challenge is that eviction strategies on ARM CPUs are slow, and the microarchitectural attacks exploiting the cache as a covert channel...
Virtual address space mapping for IP auto-configuration in MANET with security capability
, Article Proceedings of the 2008 International Conference on Advanced Infocomm Technology, ICAIT '08, 29 July 2008 through 31 July 2008, Shenzhen ; 2008 ; 9781605580883 (ISBN) ; Tajamolian, M ; Dehghan, M ; Mousavi, R ; Sharif University of Technology
2008
Abstract
Mobile Ad Hoc Networks (MANETs) are networks with selforganizing capabilities and without a fixed infrastructure. Wireless nodes communicate among themselves using multi-hop radio relaying, without requiring the packets to pass through a central access point or a base station. In a highly mobile and infrastructure-less scenario, pre-configuration of addresses is not possible. Therefore node addresses need to be configured dynamically with minimum delay and packet loss. Existing solutions for IP address auto-configuration do not address security issues. In this paper we propose a secure address autoconfiguration for Mobile Ad hoc Networks (MANET) based on Virtual Address Space Mapping [1]....