// For flags

CVE-2012-4457

2012.1.1: fails to raise Unauthorized user error for disabled tenant

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

OpenStack Keystone Essex before 2012.1.2 and Folsom before folsom-3 does not properly handle authorization tokens for disabled tenants, which allows remote authenticated users to access the tenant's resources by requesting a token for the tenant.

OpenStack Keystone Essex antes de v2012.1.2 y Folsom antes de Folsom-3 no tratan correctamente los tokens de autorización para identidades deshabilitadas, lo que permite a usuarios remotos autenticados acceder a los recursos de dicha identidad solicitando un token para el individuo.

Keystone is a Python implementation of the OpenStack identity service API. It was found that Keystone incorrectly handled authorization failures. If a client attempted to change their tenant membership to one they are not authorized to join, Keystone correctly returned a not authorized error; however, the client was still added to the tenant. Users able to access the Keystone administrative API could use this flaw to add any user to any tenant. When logging into Keystone, the user receives a token to use for authentication with other services managed by Keystone. It was found that Keystone failed to revoke tokens if privileges were revoked, allowing users to retain access to resources they should no longer be able to access while their token remains valid.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2012-08-21 CVE Reserved
  • 2012-10-09 CVE Published
  • 2024-08-06 CVE Updated
  • 2025-06-10 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-287: Improper Authentication
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Openstack
Search vendor "Openstack"
Keystone
Search vendor "Openstack" for product "Keystone"
>= 2012.1 < 2012.1.2
Search vendor "Openstack" for product "Keystone" and version " >= 2012.1 < 2012.1.2"
-
Affected
Openstack
Search vendor "Openstack"
Keystone
Search vendor "Openstack" for product "Keystone"
2012.2
Search vendor "Openstack" for product "Keystone" and version "2012.2"
milestone1
Affected
Openstack
Search vendor "Openstack"
Keystone
Search vendor "Openstack" for product "Keystone"
2012.2
Search vendor "Openstack" for product "Keystone" and version "2012.2"
milestone2
Affected