CVE Vulnerabilities

CVE-2020-12690

Insufficient Session Expiration

Published: May 07, 2020 | Modified: Nov 07, 2023
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.5 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P
RedHat/V2
RedHat/V3
8.8 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM

An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The list of roles provided for an OAuth1 access token is silently ignored. Thus, when an access token is used to request a keystone token, the keystone token contains every role assignment the creator had for the project. This results in the provided keystone token having more role assignments than the creator intended, possibly giving unintended escalated access.

Weakness

According to WASC, “Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization.”

Affected Software

Name Vendor Start Version End Version
Keystone Openstack * 15.0.1 (excluding)
Keystone Openstack 16.0.0 (including) 16.0.0 (including)
Red Hat OpenStack Platform 15.0 (Stein) RedHat openstack-keystone-1:15.0.1-0.20200512110437.95b2bbe.el8ost *
Red Hat OpenStack Platform 16.0 (Train) RedHat openstack-keystone-1:16.0.1-0.20200511063421.40cbb7b.el8ost *
Keystone Ubuntu bionic *
Keystone Ubuntu eoan *
Keystone Ubuntu esm-infra/xenial *
Keystone Ubuntu trusty *
Keystone Ubuntu upstream *
Keystone Ubuntu xenial *

Potential Mitigations

References