Nova 2011.3 and Essex, when using the OpenStack API, allows remote authenticated users to bypass access restrictions for tenants of other users via an OSAPI request with a modified project_id URI parameter.
CVSS Severity (version 2.0):
Impact Subscore: 4.9
Exploitability Subscore: 6.8
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Required to exploit
Impact Type: Allows unauthorized modification; Allows disruption of service
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[openstack] 20120111 [OSSA 2012-001] Tenant bypass by authenticated users using OpenStack API (CVE-2012-0030)
Vulnerable software and versions