Timing-based Brute Force Attack on Instance ID Signatures in OpenStack Compute (Nova)

Timing-based Brute Force Attack on Instance ID Signatures in OpenStack Compute (Nova)

CVE-2014-3517 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:N/A:N

api/metadata/handler.py in OpenStack Compute (Nova) before 2013.2.4, 2014.x before 2014.1.2, and Juno before Juno-2, when proxying metadata requests through Neutron, makes it easier for remote attackers to guess instance ID signatures via a brute-force attack that relies on timing differences in responses to instance metadata requests.

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