// For flags

CVE-2014-2828

openstack-keystone: denial of service via V3 API authentication chaining

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The V3 API in OpenStack Identity (Keystone) 2013.1 before 2013.2.4 and icehouse before icehouse-rc2 allows remote attackers to cause a denial of service (CPU consumption) via a large number of the same authentication method in a request, aka "authentication chaining."

La API V3 en OpenStack Identity (Keystone) 2013.1 anterior a 2013.2.4 y icehouse anterior a icehouse-rc2 permite a atacantes remotos causar una denegación de servicio (consumo de CPU) a través de un número grande del mismo método de autenticación en una solicitud, también conocido como "encadenamiento de autenticación."

A flaw was found in the keystone V3 API. An attacker could send a single request with the same authentication method multiple times, possibly leading to a denial of service due to generating excessive load with minimal requests. Only keystone setups with the V3 API enabled were affected by this issue.

The OpenStack Identity service authenticates and authorizes OpenStack users by keeping track of users and their permitted activities. The Identity service supports multiple forms of authentication, including user name and password credentials, token-based systems, and AWS-style logins. A flaw was found in the keystone V3 API. An attacker could send a single request with the same authentication method multiple times, possibly leading to a denial of service due to generating excessive load with minimal requests. Only keystone setups with the V3 API enabled were affected by this issue.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2014-04-10 CVE Reserved
  • 2014-04-15 CVE Published
  • 2024-08-06 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-287: Improper Authentication
  • CWE-400: Uncontrolled Resource Consumption
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"
2013.1
Search vendor "Openstack" for product "Keystone" and version "2013.1"
-
Affected
Openstack
Search vendor "Openstack"
Keystone
Search vendor "Openstack" for product "Keystone"
2013.1.1
Search vendor "Openstack" for product "Keystone" and version "2013.1.1"
-
Affected
Openstack
Search vendor "Openstack"
Keystone
Search vendor "Openstack" for product "Keystone"
2013.1.2
Search vendor "Openstack" for product "Keystone" and version "2013.1.2"
-
Affected
Openstack
Search vendor "Openstack"
Keystone
Search vendor "Openstack" for product "Keystone"
2013.1.3
Search vendor "Openstack" for product "Keystone" and version "2013.1.3"
-
Affected
Openstack
Search vendor "Openstack"
Keystone
Search vendor "Openstack" for product "Keystone"
2013.2
Search vendor "Openstack" for product "Keystone" and version "2013.2"
-
Affected
Openstack
Search vendor "Openstack"
Keystone
Search vendor "Openstack" for product "Keystone"
2013.2.1
Search vendor "Openstack" for product "Keystone" and version "2013.2.1"
-
Affected
Openstack
Search vendor "Openstack"
Keystone
Search vendor "Openstack" for product "Keystone"
2013.2.2
Search vendor "Openstack" for product "Keystone" and version "2013.2.2"
-
Affected
Openstack
Search vendor "Openstack"
Keystone
Search vendor "Openstack" for product "Keystone"
2013.2.3
Search vendor "Openstack" for product "Keystone" and version "2013.2.3"
-
Affected