CVE-2014-3476

openstack-keystone: privilege escalation through trust chained delegation

Severity Score

6.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

OpenStack Identity (Keystone) before 2013.2.4, 2014.1 before 2014.1.2, and Juno before Juno-2 does not properly handle chained delegation, which allows remote authenticated users to gain privileges by leveraging a (1) trust or (2) OAuth token with impersonation enabled to create a new token with additional roles.

OpenStack Identity (Keystone) anterior a 2013.2.4, 2014.1 anterior a 2014.1.2, y Juno anterior a Juno-2 no maneja debidamente la delegación encadenada, lo que permite a usuarios remotos autenticados ganar privilegios mediante el aprovechamiento de un token (1) trust o (2) OAuth con suplantación habilitada para crear un token nuevo con roles adicionales.

A flaw was found in keystone's chained delegation. A trustee able to create a delegation from a trust or an OAuth token could misuse identity impersonation to bypass the enforced scope, possibly allowing them to obtain elevated privileges to the trustor's projects and roles.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2014-05-14 CVE Reserved
2014-06-17 CVE Published
2024-06-15 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-269: Improper Privilege Management

CAPEC

References (8)

URL	Tag	Source
http://secunia.com/advisories/57886	Third Party Advisory
http://secunia.com/advisories/59547	Third Party Advisory
http://www.securityfocus.com/bid/68026	Third Party Advisory

URL	Date	SRC
https://bugs.launchpad.net/keystone/+bug/1324592	2024-08-06

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2014/06/12/3	2020-06-02

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00031.html	2020-06-02
https://access.redhat.com/security/cve/CVE-2014-3476	2014-07-31
https://bugzilla.redhat.com/show_bug.cgi?id=1104524	2014-07-31

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"				>= 2013.2 < 2013.2.4 Search vendor "Openstack" for product "Keystone" and version " >= 2013.2 < 2013.2.4"		-		Affected
Openstack Search vendor "Openstack"		Keystone Search vendor "Openstack" for product "Keystone"				>= 2014.1 < 2014.1.2 Search vendor "Openstack" for product "Keystone" and version " >= 2014.1 < 2014.1.2"		-		Affected
Suse Search vendor "Suse"		Cloud Search vendor "Suse" for product "Cloud"				3 Search vendor "Suse" for product "Cloud" and version "3"		-		Affected