4.3med
CVE-2016-4911
OpenStack Identity Keystone Improper Access Control
Also known as GHSA-f82m-w3p3-cgp3, PYSEC-2016-38
Published 10 y ago · modified 4 mo ago · JSON
CVSS
4.3
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
1.4%
percentile 73%
Public exploits
0
none known
Summary
The Fernet Token Provider in OpenStack Identity (Keystone) 9.0.x before 9.0.1 (mitaka) allows remote authenticated users to prevent revocation of a chain of tokens and bypass intended access restrictions by rescoping a token.
Exploit prediction (EPSS)
1.40% probability of exploitation in the next 30 days, higher than 73% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| GitHub | 3.0 | 4.3 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pypi | keystone | >=9.0.0, <9.0.1 | 9.0.1 |
Classification
- Weakness
- CWE-284 Improper Access Control
References
- bugs.launchpad.net /keystone/+bug/1577558 · x_refsource_CONFIRM, x_transferred
- openwall.com /lists/oss-security/2016/05/17/10 · mailing-list, x_refsource_MLIST, x_transferred
- securityfocus.com /bid/90728 · vdb-entry, x_refsource_BID, x_transferred
- security.openstack.org /ossa/OSSA-2016-008.html · x_refsource_CONFIRM, x_transferred
- review.openstack.org /#/c/311886/ · x_refsource_CONFIRM, x_transferred
- openwall.com /lists/oss-security/2016/05/17/11 · mailing-list, x_refsource_MLIST, x_transferred
- nvd.nist.gov /vuln/detail/CVE-2016-4911 · advisory
- github.com /openstack/keystone/commit/0d376025bae61bf5ee19d992c7f336b99ac69240 · web
- github.com /openstack/keystone/commit/ee1dc941042d1f71699971c5c30566af1b348572 · web
- github.com /openstack/keystone · package
- github.com /pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2016-38.yaml · web
- review.openstack.org /#/c/311886 · web
Sources
- CVE List: CVE-2016-4911
- GitHub Advisory: GHSA-f82m-w3p3-cgp3
- NVD: CVE-2016-4911
- OSV: PYSEC-2016-38
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.