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Broken Authorization in ZITADEL Actions

High severity GitHub Reviewed Published Aug 25, 2022 in zitadel/zitadel • Updated Jan 30, 2023

Package

gomod github.com/zitadel/zitadel (Go)

Affected versions

>= 2.0.0, < 2.2.0
>= 1.42.0, < 1.87.1

Patched versions

2.2.0
1.87.1

Description

Impact

Actions, introduced in ZITADEL 1.42.0 on the API and 1.56.0 for Console, is a feature, where users with role ORG_OWNER are able to create Javascript Code, which is invoked by the system at certain points during the login.
Actions, for example, allow creating authorizations (user grants) on newly created users programmatically.
Due to a missing authorization check, Actions were able to grant authorizations for projects that belong to other organisations inside the same Instance. Granting authorizations via API and Console is not affected by this vulnerability.

Patches

2.x versions are fixed on >= 2.2.0
1.x versions are fixed on >= 1.87.1

ZITADEL recommends upgrading to the latest versions available in due course.

Workarounds

There is no workaround since a patch is already available.

Who did disclose this

During our recurring white box penetration test our external security consultant found this issue.
The full report will be made public after the complete review.

References

https://docs.zitadel.com/docs/guides/manage/customize/behavior
https://docs.zitadel.com/docs/apis/actions
https://zitadel.com/blog/pentest-results-h1-2021

Questions

If you have any questions or comments about this advisory:

References

@livio-a livio-a published to zitadel/zitadel Aug 25, 2022
Published to the GitHub Advisory Database Aug 30, 2022
Reviewed Aug 30, 2022
Published by the National Vulnerability Database Aug 31, 2022
Last updated Jan 30, 2023

Severity

High

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
High
User interaction
None
Scope
Changed
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:H/UI:N/S:C/C:H/I:H/A:N

EPSS score

0.186%
(56th percentile)

Weaknesses

CVE ID

CVE-2022-36051

GHSA ID

GHSA-c8fj-4pm8-mp2c

Source code

github.com/zitadel/zitadel

Credits

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