CVE-2023-32677

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Summary

CVECVE-2023-32677
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-05-19 21:15:00 UTC
Updated2023-05-26 17:28:00 UTC
DescriptionZulip is an open-source team collaboration tool with unique topic-based threading. Zulip administrators can configure Zulip to limit who can add users to streams, and separately to limit who can invite users to the organization. In Zulip Server 6.1 and below, the UI which allows a user to invite a new user also allows them to set the streams that the new user is invited to -- even if the inviting user would not have permissions to add an existing user to streams. While such a configuration is likely rare in practice, the behavior does violate security-related controls. This does not let a user invite new users to streams they cannot see, or would not be able to add users to if they had that general permission. This issue has been addressed in version 6.2. Users are advised to upgrade. Users unable to upgrade may limit sending of invitations down to users who also have the permission to add users to streams.

Risk And Classification

Problem Types: CWE-862

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Zulip Zulip All All All All

References

ReferenceSourceLinkTags
Users who can send invitations can add users to streams during invitation, even if they cannot add users to streams at other times · Advisory · zulip/zulip · GitHub MISC github.com
CVE-2023-32677: Check permission to subscribe other users in invites. · zulip/zulip@7c2693a · GitHub MISC github.com
Restrict account creation | Zulip help center MISC zulip.com
Restrict stream membership management | Zulip help center MISC zulip.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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