OpenStack Heat cloudformation-compatible API ssecurity bypass

keystone-cve20136426-sec-bypass (89658) The risk level is classified as MediumMedium Risk

Description:

OpenStack Heat cloudformation-compatible API could allow a remote attacker to bypass security restrictions, caused by an error within the policy enforcement by calling the CreateStack() or UpdateStack() methods. An attacker could exploit this vulnerability to create or update a stack in violation of the default policy.

*CVSS:

Base Score: 5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 3.7
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Obtain Information

Remedy:

Refer to OSSA 2013-034 for patch, upgrade or suggested workaround information. See References.

References:

  • oss-sec Mailing List, Wed, 11 Dec 2013 15:47:36 +0000: Heat CFN policy rules not all enforced (CVE-2013-6426).
  • OSSA 2013-034: Heat CFN policy rules not all enforced (CVE-2013-6426).
  • BID-64243: OpenStack Heat CFN Policy CVE-2013-6426 Security Bypass Vulnerability
  • CVE-2013-6426: 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.

Platforms Affected:

  • OpenStack Heat 2013.2

Reported:

Dec 11, 2013

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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