GitHub Advisoryadvisory · npm

GHSA-23r4-5mxp-c7g5 parse-server new anonymous user session acts as if it's created with password

MEDIUM Published 2021-08-23 Modified 2022-08-15 Official page ↗
Aliases
CVE-2021-39138
Ecosystem
npm
Packages
parse-server
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-287, CWE-863
Reviewed
2021-08-23

Affected packages

• npm parse-server: < 4.5.2 → fixed in 4.5.2

Description

Impact Developers that use the REST API to signup users and also allow users to login anonymously. 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 currently doesn't use `createdWith` to make decisions on how things work internally, so if a developer isn't using `createdWith` directly, there's nothing to worry about. The vulnerability only affects users who depend on `createdWith` by using it directly. Patches Upgrade to version 4.5.1. Workarounds Don't use the `createdWith` Session field to make decisions if you allow anonymous login. References n/a

Related

Alias · CVE (1)

  • CVE-2021-39138 Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. vulnerability

Weakness · CWE (2)

  • CWE-287 Improper Authentication weakness
  • CWE-863 Incorrect Authorization weakness

References