CVE-2019-1020013

Description

Versions of parse-server prior to 3.6.0 could allow an account enumeration attack via account linking. `ParseError.ACCOUNT_ALREADY_LINKED(208)` was thrown BEFORE the AuthController checks the password and throws a `ParseError.SESSION_MISSING(206)` for Insufficient auth. An attacker can guess ids and get information about linked accounts/email addresses. ### For more information If you have any questions or comments about this advisory, Open an issue in the [parse-server](https://github.com/parse-community/parse-server) [Parse Community Vulnerability Disclosure Program](https://github.com/parse-community/parse-server/blob/master/SECURITY.md)

How to fix CVE-2019-1020013

To remediate CVE-2019-1020013, upgrade the affected package to a fixed version below.

• —upgrade to 3.6.0 or later

Is CVE-2019-1020013 being exploited?

Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 3.6.0

CVSS scores

References (7)

• ADVISORYgithub.com/advisories/GHSA-8w3j-g983-8jh5
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2019-1020013
• WEBgithub.com/parse-community/parse-server/commit/73b0f9a339b81f5d757725dc557955a7b670a3ec
• WEBgithub.com/parse-community/parse-server/security/advisories/GHSA-8w3j-g983-8jh5