ShanghaiTech University Knowledge Management System
Cross-VM and Cross-Processor Covert Channels Exploiting Processor Idle Power Management | |
2021-08 | |
会议录名称 | USENIX SECURITY '21
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发表状态 | 已发表 |
DOI | 无 |
摘要 | To achieve power-efficient computing, processors engage idle power management mechanisms to turn on/off idle components according to the dynamics of the workload. A processor's hardware components are classified and managed through the core and the uncore. The uncore is the supporting hardware shared by the cores, hence the decision of turning it on/off depends on the cores' activities. Such 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. We show this covert channel can work across processors and violate VM isolation. We validate the channel in in-house testbeds as well as proprietary cloud servers. |
会议名称 | 30th USENIX Security Symposium |
出版地 | SUITE 215, 2560 NINTH ST, BERKELEY, CA 94710 USA |
会议地点 | ELECTR NETWORK |
会议日期 | AUG 11-13, 2021 |
URL | 查看原文 |
收录类别 | EI ; CPCI ; CPCI-S |
语种 | 英语 |
资助项目 | Shanghai Sailing Program[18YF1416700] |
WOS研究方向 | Computer Science |
WOS类目 | Computer Science, Information Systems ; Computer Science, Theory & Methods |
WOS记录号 | WOS:000722006800042 |
出版者 | USENIX ASSOC |
EI入藏号 | 20213710882191 |
原始文献类型 | Conference article (CA) |
文献类型 | 会议论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/126757 |
专题 | 信息科学与技术学院_硕士生 信息科学与技术学院_PI研究组_杨智策组 |
通讯作者 | Chen, Paizhuo; Li, Lei |
作者单位 | ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai, Peoples R China |
第一作者单位 | 信息科学与技术学院 |
通讯作者单位 | 信息科学与技术学院 |
第一作者的第一单位 | 信息科学与技术学院 |
推荐引用方式 GB/T 7714 | Chen, Paizhuo,Li, Lei,Yang, Zhice. Cross-VM and Cross-Processor Covert Channels Exploiting Processor Idle Power Management[C]. SUITE 215, 2560 NINTH ST, BERKELEY, CA 94710 USA:USENIX ASSOC,2021. |
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