The cloudformation-compatible API in OpenStack Orchestration API (Heat) before Havana 2013.2.1 and Icehouse before icehouse-2 does not properly enforce policy rules, which allows local in-instance users to bypass intended access restrictions and (1) create a stack via the CreateStack method or (2) update a stack via the UpdateStack method.
CVSS Severity (version 2.0):
Impact Subscore: 2.9
Exploitability Subscore: 8.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Required to exploit
Impact Type: Allows unauthorized modification
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Patch Information; Exploit
[oss-security] 20131211 [OSSA 2013-034] Heat CFN policy rules not all enforced (CVE-2013-6426)
Vulnerable software and versions