Oracle Cloud fixes ‘critical’ data-access vulnerability

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Oracle Cloud fixes ‘critical’ data-access vulnerability
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Oracle Cloud at one point would let you access any other customer's data

A"critical" Oracle Cloud Infrastructure vulnerability could have been exploited by any customer to gain read and write access to data belonging to any other OCI customer without any permission checks, according to Wiz security researchers.

Essentially, the flaw, as described by Wiz, could be exploited thus: if you knew the Oracle Cloud Identifier for another customers' storage volume – which is not a secret – you could attach that volume to your own virtual machine in Oracle's cloud as long as the volume wasn't already attached or supported multi-attachment. So, obtain the identifier, attach a volume, access it as if it was yours, including any sensitive information on it.

Gaining write access, Gabay explained,"could be used to manipulate any data on the volume, including the operating system runtime , thus gaining code execution over the remote compute instance and a foothold in the victim's cloud environment, once the volume is used to boot a machine."

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