CVE-2013-6391

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Summary

CVECVE-2013-6391
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2013-12-14 17:21:46 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe ec2tokens API in OpenStack Identity (Keystone) before Havana 2013.2.1 and Icehouse before icehouse-2 does not return a trust-scoped token when one is received, which allows remote trust users to gain privileges by generating EC2 credentials from a trust-scoped token and using them in an ec2tokens API request.

Risk And Classification

Primary CVSS: v2.0 5.8 from [email protected]

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

EPSS: 0.004980000 probability, percentile 0.659220000 (date 2026-04-30)

Problem Types: CWE-269 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 13.10 All All All
Application Openstack Keystone All All All All
Application Redhat Openstack 4.0 All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
USN-2061-1: OpenStack Keystone vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
Security Advisory SA56154 - Ubuntu update for keystone - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Third Party Advisory
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com Third Party Advisory, VDB Entry
Bug #1242597 “[OSSA 2013-032] Keystone trust circumvention throu...” : Bugs : Keystone af854a3a-2127-422b-91ae-364da2661108 bugs.launchpad.net Exploit, Issue Tracking, Third Party Advisory
OpenStack Keystone EC2-style Tokens Validation Privilage Escalation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
oss-security - [OSSA 2013-032] Keystone trust circumvention through EC2-style tokens (CVE-2013-6391) af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
Security Advisory SA56079 - OpenStack Keystone EC2 Tokens Security Bypass Security Issue - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.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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