CVE-2015-7546

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Summary

CVECVE-2015-7546
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-02-03 18:59:04 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe identity service in OpenStack Identity (Keystone) before 2015.1.3 (Kilo) and 8.0.x before 8.0.2 (Liberty) and keystonemiddleware (formerly python-keystoneclient) before 1.5.4 (Kilo) and Liberty before 2.3.3 does not properly invalidate authorization tokens when using the PKI or PKIZ token providers, which allows remote authenticated users to bypass intended access restrictions and gain access to cloud resources by manipulating byte fields within a revoked token.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-522 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary6AV:N/AC:M/Au:S/C:P/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:M/Au:S/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openstack Keystone All All All All
Application Openstack Keystone All All All All
Application Openstack Keystonemiddleware All All All All
Application Openstack Keystonemiddleware All All All All
Operating System Oracle Solaris 11.3 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
OSSA-2016-005: Potential reuse of revoked Identity tokens — OpenStack Security Advisories 2014.2.0.dev100 documentation af854a3a-2127-422b-91ae-364da2661108 security.openstack.org Patch, Vendor Advisory
OpenStack Keystone PKI Token Revocation CVE-2015-7546 Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
OSSN/OSSN-0062 - OpenStack af854a3a-2127-422b-91ae-364da2661108 wiki.openstack.org Vendor Advisory
Bug #1490804 “[OSSA 2016-005] PKI Token Revocation Bypass (CVE-2...” : Bugs : OpenStack Identity (keystone) af854a3a-2127-422b-91ae-364da2661108 bugs.launchpad.net Issue Tracking, Third Party Advisory
Oracle Solaris Bulletin - April 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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