CVE-2015-7546
OpenStack Identity Keystone and keystonemiddleware Insufficiently Protected Credentials
7.5
HIGH
CVSS 3.1
EPSS 0.10%
Description
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.
How to fix CVE-2015-7546
To remediate CVE-2015-7546, upgrade the affected package to a fixed version below.
- —upgrade to 2:9.0.0~rc2-1 or later
- —upgrade to 3.0.0-1 or later
- —upgrade to 9.0.0.0b2 or later
- —upgrade to 4.1.0 or later
- —upgrade to 1.5.4 or later
Is CVE-2015-7546 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- from 0, < 2:9.0.0~rc2-1
- from 0, < 3.0.0-1
- >= 9.0.0.0b1, < 9.0.0.0b2
- >= 2.4.0, < 4.1.0
- from 0, < 1.5.4, >= 1.6.0, < 2.3.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |