CVEvulnerability

CVE-2021-38155

7.5 HIGH Published 2021-08-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-08-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-307

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's corresponding UUID, which might be leveraged for other unrelated attacks. All deployments enabling security_compliance.lockout_failure_attempts are affected.

Affected configurations

• openstack keystone (>= 10.0.0 < 16.0.2) • openstack keystone (>= 17.0.0 < 17.0.1) • openstack keystone (>= 18.0.0 < 18.0.1) • openstack keystone (>= 19.0.0 < 19.0.1)

Related

Weakness · CWE (1)

  • CWE-307 Improper Restriction of Excessive Authentication Attempts weakness

References