CVE-2022-21706

Zulip is an open-source team collaboration tool with topic-based threading. Zulip Server version 2.0.0 and above are vulnerable to insufficient access control with multi-use invitations. A Zulip Server deployment which hosts multiple organizations is vulnerable to an attack where an invitation created in one organization (potentially as a role with elevated permissions) can be used to join any other organization. This bypasses any restrictions on required domains on users' email addresses, may be used to gain access to organizations which are only accessible by invitation, and may be used to gain access with elevated privileges. This issue has been patched in release 4.10. There are no known workarounds for this issue. ### Patches _Has the problem been patched? What versions should users upgrade to?_ ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ ### References _Are there any links users can visit to find out more?_ ### For more information If you have any questions or comments about this advisory, you can discuss them on the [developer community Zulip server](https://zulip.com/developer-community/), or email the [Zulip security team](mailto:security@zulip.com).
Configurations

Configuration 1 (hide)

cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*

History

24 Jul 2023, 13:47

Type Values Removed Values Added
CWE CWE-863 NVD-CWE-Other

08 Mar 2022, 15:11

Type Values Removed Values Added
References (CONFIRM) https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc - (CONFIRM) https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc - Third Party Advisory
References (MISC) https://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9e - (MISC) https://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9e - Patch, Third Party Advisory
References (MISC) https://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706 - (MISC) https://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706 - Vendor Advisory
References (MISC) https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/ - (MISC) https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/ - Vendor Advisory
CPE cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*
CWE CWE-284
First Time Zulip
Zulip zulip Server
CVSS v2 : unknown
v3 : unknown
v2 : 7.5
v3 : 9.8

26 Feb 2022, 00:15

Type Values Removed Values Added
New CVE

Information

Published : 2022-02-26 00:15

Updated : 2023-12-10 14:22


NVD link : CVE-2022-21706

Mitre link : CVE-2022-21706

CVE.ORG link : CVE-2022-21706


JSON object : View

Products Affected

zulip

  • zulip_server
CWE
NVD-CWE-Other CWE-284

Improper Access Control

CWE-863

Incorrect Authorization