Home/CVE/A flaw was found in OpenStack Keystone. This vulnerability allows remote authenticated users to bypass intended authoriz
CVE

CVE-2012-5571

A flaw was found in OpenStack Keystone. This vulnerability allows remote authenticated users to bypass intended authoriz

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.

MEDIUM · CVSS 5.4 EPSS 0.00152
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-639Authorization Bypass Through User-Controlled Key
▤

Affected Products & Versions

2
openstack essexall versions
openstack folsomall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI keystone MODERATE fixed in 8.0.0a0
▣

Scoring & Timeline

5.4
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD18 Dec 2012 · 01:55 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
⚑

Vendor Advisories

3
usnUSN-1641-1
rhsaRHSA-2012:1557Moderate
rhsaRHSA-2012:1556Low
🔗

References & Sources

15
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.fedoraproject.org/pipermail/package-announce/2012-December/094286.html
http://rhn.redhat.com/errata/RHSA-2012-1556.html
http://rhn.redhat.com/errata/RHSA-2012-1557.html
http://secunia.com/advisories/51423Vendor Advisory
http://secunia.com/advisories/51436Vendor Advisory
http://www.openwall.com/lists/oss-security/2012/11/28/5Patch
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