Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.71 and 9.7.1-alpha.1, file downloads via HTTP Range requests bypass the afterFind(Parse.File) trigger and its validators on storage adapters that support streaming (e.g. the default GridFS adapter). This allows access to files that should be protected by afterFind trigger authorization logic or built-in validators such as requireUser.
This issue has been patched in versions 8.6.71 and 9.7.1-alpha.1.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/parse-community/parse-server/commit/053109b3ee71815bc39ed841…
security-advisories@github.com
https://github.com/parse-community/parse-server/commit/a0b0c69fc44f87f80d793d25…
security-advisories@github.com
https://github.com/parse-community/parse-server/pull/10361
security-advisories@github.com
https://github.com/parse-community/parse-server/pull/10362
security-advisories@github.com
https://github.com/parse-community/parse-server/security/advisories/GHSA-hpm8-9…
security-advisories@github.com