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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
NVD MITRE
EPSS Score
2.1%
Top 20.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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

AV:NAC:LPR:LUI:NS:UC:LI:LA:N
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-639CWE-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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