CVE-2013-1865

keystone: online validation of Keystone PKI tokens bypasses revocation check

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

OpenStack Keystone Folsom (2012.2) does not properly perform revocation checks for Keystone PKI tokens when done through a server, which allows remote attackers to bypass intended access restrictions via a revoked PKI token.

OpenStack Keystone Folsom (2012.2) no lleva a cabo todas las comprobaciones de revocación de tokens Keystone PKI cuando se hace a través de un servidor, lo que permite a atacantes remotos evitar las restricciones de acceso destinados a través de un token de revocar PKI.

The openstack-keystone packages provide Keystone, a Python implementation of the OpenStack identity service API, which provides Identity, Token, Catalog, and Policy services. It was found that Keystone did not correctly handle revoked PKI tokens, allowing users with revoked tokens to retain access to resources they should no longer be able to access. A flaw was found in the way Keystone handled tenant names in token requests. A request containing an excessively long tenant name could cause Keystone to consume a large amount of CPU and memory. With this update, the maximum HTTP request size is limited to 112k. This can be changed via the "max_request_body_size" option in "/etc/keystone/keystone.conf".

*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

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

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

2013-02-19 CVE Reserved
2013-03-21 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-285: Improper Authorization
CWE-287: Improper Authentication

CAPEC

References (12)

URL	Tag	Source
http://osvdb.org/91532	Vdb Entry
http://www.openwall.com/lists/oss-security/2013/03/20/13	Mailing List
http://www.securityfocus.com/bid/58616	Vdb Entry
https://bugs.launchpad.net/keystone/+bug/1129713	X_refsource_confirm
https://review.openstack.org/#/c/24906	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101719.html	2023-02-13
http://lists.opensuse.org/opensuse-updates/2013-04/msg00000.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2013-0708.html	2023-02-13
http://secunia.com/advisories/52657	2023-02-13
http://www.ubuntu.com/usn/USN-1772-1	2023-02-13
https://access.redhat.com/security/cve/CVE-2013-1865	2013-04-04
https://bugzilla.redhat.com/show_bug.cgi?id=922230	2013-04-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Openstack Search vendor "Openstack"		Folsom Search vendor "Openstack" for product "Folsom"				2012.2 Search vendor "Openstack" for product "Folsom" and version "2012.2"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.10"		-		Affected