CVE-2015-7546
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-7546
Vendor advisory: secalert@redhat.com — https://wiki.openstack.org/wiki/OSSN/OSSN-0062
Vendor advisory: secalert@redhat.com — https://security.openstack.org/ossa/OSSA-2016-005.html
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2015-7546.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 2:9.0.0~rc2-1 |
| debian | bullseye | fixed | 2:9.0.0~rc2-1 |
| debian | forky | fixed | 2:9.0.0~rc2-1 |
| debian | sid | fixed | 2:9.0.0~rc2-1 |
| debian | trixie | fixed | 2:9.0.0~rc2-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | keystone | >=9.0.0.0b1,<9.0.0.0b2 | 9.0.0.0b2 |
| PyPI | keystonemiddleware | >=2.4.0,<4.1.0 | 4.1.0 |
| PyPI | keystone | >=8.0,<8.1.0 | 8.1.0 |
| PyPI | keystonemiddleware | <1.5.4 | 1.5.4 |
| PyPI | keystonemiddleware | >=1.6.0,<2.3.3 | 2.3.3 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| openstack | keystonemiddleware | {"startIncluding":"1.5.0","endIncluding":"1.5.3"} | |
| openstack | keystone | {"startIncluding":"8.0.0","endExcluding":"8.0.2"} | 8.0.2 |
References
- https://www.suse.com/security/cve/CVE-2015-7546.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/80498
- https://bugs.launchpad.net/keystone/+bug/1490804
- https://security.openstack.org/ossa/OSSA-2016-005.html
- https://wiki.openstack.org/wiki/OSSN/OSSN-0062
- https://nvd.nist.gov/vuln/detail/CVE-2015-7546
- https://github.com/openstack/keystone/commit/bff03b5726fe5cac93d44a66715eea49b89c8cb0
- https://github.com/openstack/keystone/commit/d5378f173da14a34ca010271477337879002d6d0
- https://github.com/openstack/keystonemiddleware/commit/96ab58e6863c92575ada57615b19652e502adfd8
- https://github.com/pypa/advisory-database/tree/main/vulns/keystonemiddleware/PYSEC-2016-20.yaml
- https://web.archive.org/web/20200228002640/http://www.securityfocus.com/bid/80498
- https://security-tracker.debian.org/tracker/CVE-2015-7546
CWEs
CWE-522
Verify integrity in audit chain (admin only). AS-IS.