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Openstack Keystone Incorrect Authorization vulnerability

Critical severity GitHub Reviewed Published Aug 27, 2022 to the GitHub Advisory Database • Updated Jan 22, 2024

Package

pip keystone (pip)

Affected versions

<= 21.0.0

Patched versions

None

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. A patch is available.

References

Published by the National Vulnerability Database Aug 26, 2022
Published to the GitHub Advisory Database Aug 27, 2022
Reviewed Sep 16, 2022
Last updated Jan 22, 2024

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS score

2.331%
(90th percentile)

Weaknesses

CVE ID

CVE-2021-3563

GHSA ID

GHSA-cc99-whm5-mmq3

Source code

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