VulnerabilityModified

CVE-2016-4911

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.

MEDIUM 4.3EPSS 1.40%

Does this matter?

Lower severity and a low EPSS score (1.40%). Track it; it rarely justifies an emergency change on its own.

Description

CVSS 3.1: 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS: 1.40% probability · 71th percentile
CISA KEV: Not listed
Weakness: CWE-284
Affected: keystone/openstack identity
Source: cve@mitre.org

References

http://www.openwall.com/lists/oss-security/2016/05/17/10Mailing List
http://www.openwall.com/lists/oss-security/2016/05/17/11Mailing List
http://www.securityfocus.com/bid/90728Third Party Advisory, VDB Entry
https://bugs.launchpad.net/keystone/+bug/1577558Vendor Advisory
https://review.openstack.org/#/c/311886/Vendor Advisory
https://security.openstack.org/ossa/OSSA-2016-008.htmlPatch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/05/17/10Mailing List
http://www.openwall.com/lists/oss-security/2016/05/17/11Mailing List
http://www.securityfocus.com/bid/90728Third Party Advisory, VDB Entry
https://bugs.launchpad.net/keystone/+bug/1577558Vendor Advisory
https://review.openstack.org/#/c/311886/Vendor Advisory
https://security.openstack.org/ossa/OSSA-2016-008.htmlPatch, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.