cnvd - cnvd-2022-15523

cnvd-2022-15523

Vulnerability from cnvd

Title: Zulip server存在未明漏洞（CNVD-2022-15523）

Description:

Zulip server是美国Zulip公司的一款开源的团队聊天应用程序。

Zulip server存在安全漏洞，该漏洞源于驻留多个组织的zlip Server部署很容易受到攻击，在一个组织中创建的邀请(可能是一个具有较高权限的角色)可以被用来加入任何其他组织。这绕过了对用户电子邮件地址所需域的任何限制，可以用来获得对只有邀请才能访问的组织的访问权。目前没有详细的漏洞细节提供。

Severity: 中

Patch Name: Zulip server存在未明漏洞（CNVD-2022-15523）的补丁

Patch Description:

Zulip server是美国Zulip公司的一款开源的团队聊天应用程序。

Formal description:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc

Reference: https://nvd.nist.gov/vuln/detail/CVE-2022-21706

Impacted products

Name
Zulip Zulip Server

Show details on source website

JSON

To clipboard

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}

CVE-2022-21706 (GCVE-0-2022-21706)

Vulnerability from cvelistv5

Published

2022-02-25 23:25

Modified

2025-04-23 19:00

Severity ?

7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CWE

CWE-863 - Incorrect Authorization
CWE-284 - Improper Access Control

Summary

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).

References

▼	URL	Tags
	https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc	x_refsource_CONFIRM
	https://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9e	x_refsource_MISC
	https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/	x_refsource_MISC
	https://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	zulip	zulip	Version: >= 2.0.0, < 4.10

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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