CVE-2012-5571

Openstack keystone: openstack keystone: authorization bypass via improper ec2 token handling

Published: Dec 18, 2012Updated: Apr 29, 2026 Sources: CVE List NVD GHSACWE-639

5.4MEDIUM

Description

A flaw was found in OpenStack Keystone. This vulnerability allows remote authenticated users to bypass intended authorization restrictions. This occurs because OpenStack Keystone does not properly handle EC2 (Elastic Compute Cloud) tokens when a user's role has been removed from a tenant. An attacker can leverage a token associated with a removed user role to gain unauthorized access.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-639 CWE-255

Affected Products

Red Hat

commercial·US

Red Hat OpenStack Platform 13 (Queens)On-prem

Cloud & SaaS / cloud-platform

Red Hat OpenStack Platform 16.2On-prem

Cloud & SaaS / cloud-platform

Red Hat OpenStack Platform 17.1SaaSSaaS Service

Cloud & SaaS / cloud-platform

Red Hat OpenStack Platform 18.0SaaSSaaS Service

Cloud & SaaS / cloud-platform

openstack

oss-project·USaka openstack foundation

essexOn-prem

Cloud & SaaS / cloud-platform

folsomOn-prem

Cloud & SaaS / cloud-platform

PyPI

package-ecosystem

Keystone

OSS Libraries

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Initial Access

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References

http://lists.fedoraproject.org/pipermail/package-announce/2012-December/094286.html

lists.fedoraproject.org

http://rhn.redhat.com/errata/RHSA-2012-1556.html

rhn.redhat.com

http://rhn.redhat.com/errata/RHSA-2012-1557.html

rhn.redhat.com

and 15 more references View all →

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