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PRODID:-//Cornell U. Department of Computer Science//Brown Bag Seminar//EN
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SUMMARY:Brown bag: Christina Delimitrou
DESCRIPTION:Title: I Know What You Did Last Summer... In the
	 Cloud\nSpeaker: Christina Delimitrou\nAbstract: Cloud providers
	 routinely schedule multiple applications per physical host to increase
	 efficiency. The resulting interference on shared resources often leads
	 to performance degradation and\, more importantly\, security
	 vulnerabilities. Interference can leak important information ranging
	 from a service's placement to confidential data\, like private
	 keys.\n\nIn this talk I will discuss Bolt\, a practical runtime system
	 that accurately detects the type and characteristics of applications
	 sharing a cloud platform based on the interference the adversary sees in
	 shared resources. In a multi-user study on EC2\, Bolt correctly
	 identifies the characteristics of 385 out of 436 diverse workloads.
	 Extracting this information enables a wide spectrum of
	 previously-impractical cloud attacks\, including denial of service
	 attacks (DoS) that increase tail latency by 140x\, as well as resource
	 freeing (RFA) and co-residency attacks. Finally\, I will discuss the
	 role advanced isolation mechanisms can play in countering such attacks\,
	 and I will show that while helpful\, they are insufficient to completely
	 eliminate them.
LOCATION:Gates 122
UID:2017-05-02
STATUS:CONFIRMED
DTSTART:20170502T160000Z
DTEND:20170502T170000Z
LAST-MODIFIED:20170430T211917Z
ORGANIZER;CN=Jonathan Shi:http://www.cs.cornell.edu/~jshi/brownbag/
DTSTAMP:20260408T173055Z
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