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CVE-2016-4911

Published: 13 June 2016

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.

Notes

AuthorNote
mdeslaur
9.0.0 only

Priority

Medium

Cvss 3 Severity Score

4.3

Score breakdown

Status

Package Release Status
keystone
Launchpad, Ubuntu, Debian
precise Not vulnerable
(code not present)
trusty Does not exist
(trusty was not-affected [code not present])
upstream
Released (2:9.0.0-2,2:9.0.1)
wily Not vulnerable
(code not present)
xenial Not vulnerable
(2:9.3.0-0ubuntu3)
yakkety Ignored
(end of life)
zesty Not vulnerable
(2:11.0.2-0ubuntu1)

Severity score breakdown

Parameter Value
Base score 4.3
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N