SB2021093003 - Information disclosure in Parse Server

Description

This security bulletin contains information about 1 vulnerability.

1) Information disclosure (CVE-ID: N/A)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to LiveQuery includes users' session token into payloads. 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 remote attacker can obtain the session token from the broadcasted payload and reuse it to bypass authentication.

Remediation

Install update from vendor's website.

References

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