CVE-2023-41058
📋 TL;DR
Parse Server deployments using the beforeFind Cloud Code trigger as a security layer are vulnerable to query manipulation bypass. This allows attackers to potentially access data they shouldn't have permission to view. All Parse Server deployments using affected versions with custom security logic in beforeFind triggers are impacted.
💻 Affected Systems
- Parse Server
📦 What is this software?
Parse Server by Parseplatform
Parse Server by Parseplatform
⚠️ Risk & Real-World Impact
Worst Case
Complete data exposure through query manipulation bypassing all custom security controls implemented in beforeFind triggers, potentially leading to data breach of sensitive information.
Likely Case
Partial data exposure where attackers can bypass specific security filters in beforeFind triggers to access restricted data they shouldn't have permission to view.
If Mitigated
Minimal impact if proper Class-Level Permissions and Object-Level Access Control are already implemented as primary security layers.
🎯 Exploit Status
Exploitation requires understanding of Parse Server query structure and knowledge that beforeFind triggers are being used for security. No authentication bypass is involved.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.5.5 or 6.2.2
Vendor Advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-fcv6-fg5r-jm9q
Restart Required: Yes
Instructions:
1. Check current Parse Server version. 2. Upgrade to version 5.5.5 (for Parse Server 5.x) or 6.2.2 (for Parse Server 6.x). 3. Restart the Parse Server instance. 4. Verify the beforeFind triggers are now being invoked correctly.
🔧 Temporary Workarounds
Implement Proper Security Layers
allReplace beforeFind trigger security logic with Parse Server's built-in Class-Level Permissions and Object-Level Access Control
🧯 If You Can't Patch
- Migrate all security logic from beforeFind triggers to Parse Server's built-in Class-Level Permissions and Object-Level Access Control
- Implement additional query validation and filtering at the application layer outside of Parse Server
🔍 How to Verify
Check if Vulnerable:
Check if your deployment uses beforeFind triggers for security purposes and verify Parse Server version is below 5.5.5 (for 5.x) or below 6.2.2 (for 6.x)Check Version:
npm list parse-serverVerify Fix Applied:
After upgrading, test that beforeFind triggers are properly invoked for all query conditions and security logic works as expected📡 Detection & Monitoring
Log Indicators:
- Unusual query patterns bypassing expected filters
- Increased data access from unauthorized users
- beforeFind trigger execution logs showing missing invocations
Network Indicators:
- Unusual query payloads to Parse Server endpoints
- Increased data volume in responses to certain queries
SIEM Query:
Parse Server logs where query results exceed expected data scope or beforeFind triggers are not logged for queries🔗 References
- https://docs.parseplatform.org/parse-server/guide/#security
- https://github.com/parse-community/parse-server/commit/be4c7e23c63a2fb690685665cebed0de26be05c5
- https://github.com/parse-community/parse-server/releases/tag/5.5.5
- https://github.com/parse-community/parse-server/releases/tag/6.2.2
- https://github.com/parse-community/parse-server/security/advisories/GHSA-fcv6-fg5r-jm9q
- https://docs.parseplatform.org/parse-server/guide/#security
- https://github.com/parse-community/parse-server/commit/be4c7e23c63a2fb690685665cebed0de26be05c5
- https://github.com/parse-community/parse-server/releases/tag/5.5.5
- https://github.com/parse-community/parse-server/releases/tag/6.2.2
- https://github.com/parse-community/parse-server/security/advisories/GHSA-fcv6-fg5r-jm9q
