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osvGoogleOSV:GHSA-GP8G-F42F-95Q2
HistoryMar 28, 2024 - 5:07 p.m.

ZITADEL's actions can overload reserved claims

2024-03-2817:07:32
Google
osv.dev
12
zitadel
overload reserved claims
impact
patches
versions
fix
workarounds
disclosure issue
management.

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

6.6

Confidence

High

EPSS

0

Percentile

13.0%

Impact

Under certain circumstances an action could set reserved claims managed by ZITADEL.

For example it would be possible to set the claim urn:zitadel:iam:user:resourceowner:name

{"urn:zitadel:iam:user:resourceowner:name": "ACME"}

if it was not set by ZITADEL itself.

To compensate for this we introduced a protection that does prevent actions from changing claims that start with urn:zitadel:iam

Patches

2.x versions are fixed on >= 2.48.3
2.47.x versions are fixed on >= 2.47.8
2.46.x versions are fixed on >= 2.46.5
2.45.x versions are fixed on >= 2.45.5
2.44.x versions are fixed on >= 2.44.7
2.43.x versions are fixed on >= 2.43.11
2.42.x versions are fixed on >= 2.42.17

Workarounds

No workaround available since a patch is available

Credits

Many thanks to @schettn whose disclosure of another topic lead us to find this issue.

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

6.6

Confidence

High

EPSS

0

Percentile

13.0%

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