CVE-2022-24751 Information

Description

Zulip is an open source group chat application. Starting with version 4.0 and prior to version 4.11 Zulip is vulnerable to a race condition during account deactivation where a simultaneous access by the user being deactivated may in rare cases allow continued access by the deactivated user. A patch is available in version 4.11 on the 4.x branch and version 5.0-rc1 on the 5.x branch. Upgrading to a fixed version will as a side effect deactivate any cached sessions that may have been leaked through this bug. There are currently no known workarounds.

CVSS Vector

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

Reference

https://github.com/zulip/zulip/commit/62ba8e455d8f460001d9fb486a6dabfd1ed67717 https://github.com/zulip/zulip/commit/e6eace307ef435eec3395c99247155efed9219e4 https://github.com/zulip/zulip/security/advisories/GHSA-6v98-m5x5-phqj

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.4