Detections
Analytics

CVE-2016-4911

medium

Description

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.

References

https://security.openstack.org/ossa/OSSA-2016-008.html

https://review.openstack.org/#/c/311886/

https://bugs.launchpad.net/keystone/+bug/1577558

http://www.securityfocus.com/bid/90728

http://www.openwall.com/lists/oss-security/2016/05/17/11

http://www.openwall.com/lists/oss-security/2016/05/17/10

Details

Source: Mitre, NVD

Published: 2016-06-13

Updated: 2025-04-12

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Severity: Medium

CVSS v4

Base Score: 5.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00207