CVE-2022-31168 Information

Description

Zulip is an open source team chat tool. Due to an incorrect authorization check in Zulip Server 5.4 and earlier a member of an organization could craft an API call that grants organization administrator privileges to one of their bots. The vulnerability is fixed in Zulip Server 5.5. Members who don’t own any bots and lack permission to create them can’t exploit the vulnerability. As a workaround for the vulnerability an organization administrator can restrict the Who can create bots permission to administrators only and change the ownership of existing bots.

Reference

https://github.com/zulip/zulip/releases/tag/5.5 https://github.com/zulip/zulip/commit/751b2a03e565e9eb02ffe923b7c24ac73d604034 https://github.com/zulip/zulip/security/advisories/GHSA-c3cp-ggg5-9xw5