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CISPA - Helmholtz-Zentrum für Informationssicherheit gGmbH Stuhlsatzenhaus 5 66123 Saarbrücken, Germany http://cispa.saarland
Contact Ms Dr. Eva Michely +49 681 870832774
Company logo of CISPA - Helmholtz-Zentrum für Informationssicherheit gGmbH
CISPA - Helmholtz-Zentrum für Informationssicherheit gGmbH

Neue Sicherheitslücke in SEVTechnologie betrifft Cloud Computing

(PresseBox) (Saarbrücken, )
Mit „CacheWarp“ haben Forschende des CISPA und der TU Graz einen neuen softwarebasierten Angriff auf die Sicherheitstechnologie „Secure Encrypted Virtualization“ (SEV) des Prozessorherstellers AMD entdeckt. SEV dient der Verschlüsselung von virtuellen Maschinen und soll die Datensicherheit auf Cloud- Diensten gewährleisten. Mit CacheWarp war es bis vor Kurzem möglich, die aktuellsten Versionen des Sicherheitsfeatures, SEV-ES (Encrypted State) und SEV-SNP (Secure Nested Paging), zu umgehen. So konnten theoretisch umfassende Zugriffs- und Änderungsrechte auf in Cloud-Diensten gespeicherte Daten erzielt werden. AMD hat die Lücke nach eigenen Angaben durch ein Update geschlossen.

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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.