Vulnerability in OpenStack Keystone
CVE-2015-7546
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (80.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.020 · change: +0.003
Affected products
- OpenStack Keystone
- OpenStack Keystonemiddleware
- Oracle Solaris — versions 11.3
Weakness classification (CWE)
References
- wiki.openstack.org/wiki/OSSN/OSSN-0062 (Vendor Advisory)
- www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html (Third Party Advisory)
- bugs.launchpad.net/keystone/+bug/1490804 (Third Party Advisory, Issue Tracking)
- security.openstack.org/ossa/OSSA-2016-005.html (Patch, Vendor Advisory)
- www.securityfocus.com/bid/80498 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2015-7546?
- CVE-2015-7546 is a high-severity vulnerability in OpenStack Keystone, classified under Insufficiently Protected Credentials. CVSS score: 7.5/10. Published 2016-02-03.
- How severe is CVE-2015-7546?
- High severity. CVSS v3 base score is 7.5 out of 10.