CVE-2021-41109 Information

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to version 4.10.4 for regular (non-LiveQuery) queries the session token is removed from the response but for LiveQuery payloads it is currently not. If a user has a LiveQuery subscription on the Parse.User class all session tokens created during user sign-ups will be broadcast as part of the LiveQuery payload. A patch in version 4.10.4 removes session tokens from the LiveQuery payload. As a workaround set user.acl(new Parse.ACL()) in a beforeSave trigger to make the user private already on sign-up.

CVSS Vector

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

Reference

https://github.com/parse-community/parse-server/releases/tag/4.10.4 https://github.com/parse-community/parse-server/commit/4ac4b7f71002ed4fbedbb901db1f6ed1e9ac5559 https://github.com/parse-community/parse-server/security/advisories/GHSA-7pr3-p5fm-8r9x

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5