CVE-2015-7546
HIGH severity · CVSS 7.5 · CWE-522
7.5CVSS HIGH
Summary
The 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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)2%
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://security.openstack.org/ossa/OSSA-2016-005.html ↗
Additional information
- NVD record
- https://security.openstack.org/ossa/OSSA-2016-005.htmlPatch
- https://wiki.openstack.org/wiki/OSSN/OSSN-0062Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlAdvisory
- http://www.securityfocus.com/bid/80498Advisory
- https://bugs.launchpad.net/keystone/+bug/1490804Advisory