CVE-2021-38155

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

06/08/2021

Last modified:

21/01/2024

Description

OpenStack Keystone 10.x through 16.x before 16.0.2, 17.x before 17.0.1, 18.x before 18.0.1, and 19.x before 19.0.1 allows information disclosure during account locking (related to PCI DSS features). By guessing the name of an account and failing to authenticate multiple times, any unauthenticated actor could both confirm the account exists and obtain that account&#39;s corresponding UUID, which might be leveraged for other unrelated attacks. All deployments enabling security_compliance.lockout_failure_attempts are affected.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

7.50

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:L/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0

5.00

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:openstack:keystone::::::::	10.0.0 (including)	16.0.2 (excluding)
cpe:2.3:a:openstack:keystone::::::::	17.0.0 (including)	17.0.1 (excluding)
cpe:2.3:a:openstack:keystone::::::::	18.0.0 (including)	18.0.1 (excluding)
cpe:2.3:a:openstack:keystone::::::::	19.0.0 (including)	19.0.1 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-38155

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools