CVE-2012-5571

Medium

Description

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.

SeverityMedium

CVSS5.4

Exploit probability81. percentile2%

ProductKeystone

PublishedDec 18, 2012

First seenDec 18, 2012

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

keystone8.0.0a0 or later

Vendor advisories

Affected products

Product	Affected versions	Fixed in
keystonePyPI	v < 8.0.0a0, No range specified	8.0.0a0
openstack essex	2012.1	—
openstack folsom	2012.2	—

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