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GitHub Advisory DatabaseGHSA-4427-7F3W-MQV6

HistoryMay 24, 2022 - 5:17 p.m.

OpenStack Keystone V3 /credentials endpoint policy logic allows to change credentials owner or target project ID

2022-05-2417:17:23

CWE-311

CWE-863

GitHub Advisory Database

github.com

openstack

keystone

credentials

endpoint

policy

security

issue

ec2

privilege escalation

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

6.5

Confidence

Low

EPSS

0.008

Percentile

81.3%

JSON

An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any authenticated user can create an EC2 credential for themselves for a project that they have a specified role on, and then perform an update to the credential user and project, allowing them to masquerade as another user. This potentially allows a malicious user to act as the admin on a project another user has the admin role on, which can effectively grant that user global admin privileges.