CVE-2021-38155

Katalog CVE

CVSS 7.5 · High EPSS 2,5%

Kerentanan Improper Restriction of Excessive Authentication Attempts pada openstack keystone. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

6 Agustus 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-307: Improper Restriction of Excessive Authentication Attempts

EPSS (30 hari)

2,5% peluang dieksploitasi; lebih tinggi dari 84,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://security.openstack.org/ossa/OSSA-2021-003.html patch · advisory vendor
• http://www.openwall.com/lists/oss-security/2021/08/10/5 mailing list · patch · advisory pihak ketiga
• https://launchpad.net/bugs/1688137 exploit · issue tracking · patch · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2024/01/msg00007.html