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CVE

CVE-2021-3563

A flaw was found in openstack-keystone. Only the first 72 characters of an application secret are verified allowing atta

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.

HIGH · CVSS 7.4 EPSS 0.00041
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  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-863Incorrect Authorization
CWE-863Incorrect Authorization
▤

Affected Products & Versions

3
openstack keystoneall versions
debian linuxall versions
redhat openstack platformall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI keystone CRITICAL
⚠

Public Exploits & PoCs

3
pocbugs.launchpad.net · 1901891bugs.launchpad.net
pocbugzilla.redhat.com · show_bug.cgi?id=1962908bugzilla.redhat.com
pocsecurity-tracker.debian.org · CVE-2021-3563security-tracker.debian.org
▣

Scoring & Timeline

7.4
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Aug 2022 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
⚑

Vendor Advisories

1
usnUSN-7926-1
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/security/cve/CVE-2021-3563Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00007.html
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