6.5

CVE-2021-39138

New anonymous user session acts as if it's created with password

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Developers can use the REST API to signup users and also allow users to login anonymously. Prior to version 4.5.1, when an anonymous user is first signed up using REST, the server creates session incorrectly. Particularly, the `authProvider` field in `_Session` class under `createdWith` shows the user logged in creating a password. If a developer later depends on the `createdWith` field to provide a different level of access between a password user and anonymous user, the server incorrectly classified the session type as being created with a `password`. The server does not currently use `createdWith` to make decisions about internal functions, so if a developer is not using `createdWith` directly, they are not affected. The vulnerability only affects users who depend on `createdWith` by using it directly. The issue is patched in Parse Server version 4.5.1. As a workaround, do not use the `createdWith` Session field to make decisions if one allows anonymous login.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Parseplatform ≫ Parse-server SwPlatformnode.js Version < 4.5.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.99% 0.58
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 6.5 3.9 2.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
nvd@nist.gov 6.4 10 4.9
AV:N/AC:L/Au:N/C:P/I:P/A:N
security-advisories@github.com 4.8 2.2 2.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

https://github.com/parse-community/parse-server/commit/147bd9a3dc43391e92c36e05d5db860b04ca27db
Patch
Third Party Advisory
https://github.com/parse-community/parse-server/releases/tag/4.5.1
Third Party Advisory
Release Notes
https://github.com/parse-community/parse-server/security/advisories/GHSA-23r4-5mxp-c7g5
Third Party Advisory