Dfs covert channels on multi-core platforms
WebSuch dependency implies a covert channel threat in multi-core platforms. Specifically, the power status of the uncore reflects the workload pattern of the active core, and it can be probed by any process running on the processor. This allows the process to infer the workload information of the active core. WebSep 14, 2024 · Furthermore, this class of covert channels is only relevant to cloud platforms where hyperthreads are enabled. Other works proposed exploiting the LLC cache as it is fast and shared among cores. Xu et al. proposed exploiting conflict in the LLC. They used a covert channel to achieve co-location in an Amazon EC2 setting.
Dfs covert channels on multi-core platforms
Did you know?
WebCache timing channel can be combined with speculative instructions to launch powerful attack which enable the spy to read secret values of the kernel or other processes. Software layers in the computing stack cannot fully eliminate cache timing channels since caches are typically shared between multiple processes. Webside channels. Specifically, we show that the processor core temperature can be used both as a side channel as well as a covert communication channel even when the system implements strong spatial and temporal partition-ing. Our experiments on an x86-based platform demon-strate covert thermal channels that achieve up to 12.5 bps
WebFeb 1, 2024 · Our experiments on an x86-based platform demonstrate covert thermal channels that achieve up to 12.5 bps and a weak side channel that can detect processes executed on neighbouring cores. Web2.We evaluate the proposed covert channels under the binary symmetric model. Results of our experiments are reported in Table 3. A discussion of our mem-ory controller-based covert channel against state-of-the-art covert is pro-vided. We also discuss potential mitigation strategies. Outline. The remainder of the paper is organized as follows.
WebXeon server X5560 platform. We study DFS covert timing channel implementation under different CPU power governors and CPU settings such as simultaneous multi-threading … WebCovert channel analysis is a critical, yet challenging, security engineering task. Despite numerous descriptions of covert channel attacks on ground-based systems and networks, such attacks have not been examined in the context of data bus protocols used in commercial space platforms hosting government payloads.
WebFigure 4: Covert communication using Thermal Channels. We demonstrate that the temperature sensors on commodity multi-core platforms can be misused for covert communication by two colluding processes in spatially and temporally isolated systems. - "Thermal Covert Channels on Multi-core Platforms"
WebDFS Covert Channels on Multi-Core Platforms Conference Paper Overview ... philip dittmerWebDec 5, 2024 · If you are planning to use DFS channels, you first have to verify that both your WiFi access points and wireless clients support this functionality. The following table … philip dixon archaeologistWebtual memory [72], I/O devices [64], etc. These covert channels, however, still exploit the resources that par-ticular multi-core platforms, for performance and other reasons, share among the processes. The threats arising from covert and side channel attacks led to the develop-ment of mitigation techniques such as partitioning of the philip dixonWebAug 8, 2024 · Command and Control Infrastructure, also known as C2 or C&C, is the set of tools and techniques that attackers use to maintain communication with compromised devices following initial exploitation. The specific mechanisms vary greatly between attacks, but C2 generally consists of one or more covert communication channels between … philip d lewis center on 45th stWebOur experiments on an Intel Xeon server platform demonstrate covert thermal channels that achieve up to 12.5 bps and weak thermal side channels that can detect processes executed on neighbouring cores. This work therefore shows a limitation in the isolation that can be achieved on existing multi-core systems. philip d. loewenWebDFS covert channels on multi-core platforms Abstract: Covert channels provide a secret communication medium between two malicious processes to exfiltrate information stealthily that violates the security policy of a system. In this paper, we demonstrate a … philip docenaWebMay 3, 2024 · The heat transfers are known as thermal covert channels (TCC) [].Thermal covert channels can be traced in multi-core systems. As in any communication system, a thermal covert channel includes a pair consisting of a transmitter and a receiver [].On the transmitter side, the temperature signals are generated from sensitive data such as user … philip dixon contractors ltd