Vulnerability Details : CVE-2013-6391
The 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.
Exploit prediction scoring system (EPSS) score for CVE-2013-6391
Probability of exploitation activity in the next 30 days: 0.33%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 68 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2013-6391
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
NIST |
CWE ids for CVE-2013-6391
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The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2013-6391
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http://www.securityfocus.com/bid/64253
OpenStack Keystone EC2-style Tokens Validation Privilage Escalation VulnerabilityThird Party Advisory;VDB Entry
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http://www.openwall.com/lists/oss-security/2013/12/11/7
oss-security - [OSSA 2013-032] Keystone trust circumvention through EC2-style tokens (CVE-2013-6391)Mailing List;Third Party Advisory
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http://rhn.redhat.com/errata/RHSA-2014-0089.html
RHSA-2014:0089 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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https://bugs.launchpad.net/keystone/+bug/1242597
Bug #1242597 “[OSSA 2013-032] Keystone trust circumvention throu...” : Bugs : OpenStack Identity (keystone)Exploit;Issue Tracking;Third Party Advisory
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https://exchange.xforce.ibmcloud.com/vulnerabilities/89657
OpenStack Keystone EC2-style tokens security bypass CVE-2013-6391 Vulnerability ReportThird Party Advisory;VDB Entry
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http://www.ubuntu.com/usn/USN-2061-1
USN-2061-1: OpenStack Keystone vulnerability | Ubuntu security noticesThird Party Advisory
Products affected by CVE-2013-6391
- cpe:2.3:a:redhat:openstack:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*
- cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*