CVE-2021-3563

HIGH

OpenStack Keystone - Auth Bypass

Title source: llm

Description

A flaw was found in openstack-keystone. Only the first 72 characters of an application secret are verified allowing attackers bypass some password complexity which administrators may be counting on. The highest threat from this vulnerability is to data confidentiality and integrity.

References (5)

[Issue Tracking, Third Party Advisory] https://access.redhat.com/security/cve/CVE-2021-3563

[Exploit, Issue Tracking, Third Party Advisory, VDB Entry] https://bugs.launchpad.net/ossa/+bug/1901891

[Exploit, Issue Tracking, Third Party Advisory, Vendor Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=1962908

[Mailing List] https://lists.debian.org/debian-lts-announce/2024/01/msg00007.html

[Exploit, Issue Tracking, Third Party Advisory] https://security-tracker.debian.org/tracker/CVE-2021-3563

Scores

CVSS v3 7.4

EPSS 0.0005

EPSS Percentile 16.2%

Attack Vector NETWORK

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

Classification

CWE

CWE-863

Status published

Affected Products (8)

openstack/keystone

debian/debian_linux

debian/debian_linux

redhat/openstack_platform

redhat/openstack_platform

redhat/openstack_platform

redhat/openstack_platform

pypi/keystone PyPI

Timeline

Published Aug 26, 2022

Tracked Since Feb 18, 2026