- Status Closed
-
Assigned To
cbay - Private
Opened by mohab4173 - 08.11.2024
Last edited by cbay - 09.11.2024
FS#94 - Race Condition in Product Creation Limit
Summary: A race condition vulnerability was found, allowing users to bypass the product limit restriction and create multiple instances of a product that should be limited to only one per user.
Steps to Reproduce:
1-Open a New Account:
Go to "Open a New Account" and enter the required information.
2-Send Concurrent Requests:
Use a tool like Burp Suite or a script to send multiple requests at the same time.
Slightly change the product name in each request (e.g., "Product1," "Product2") to avoid immediate duplicates.
3-Verify:
Check the account to confirm multiple instances of the product were created.
Impact:
1-Resource Abuse: Users can consume excessive resources (e.g., storage or server space), impacting performance and increasing operational costs.
2-Account Abuse: Malicious users may create multiple products for spam, fraud, or denial-of-service (DoS) attacks.
3-System Integrity: This flaw undermines the system’s integrity by allowing unauthorized duplication of resources.
Recommended Fixes: Atomic Operations: Ensure product creation checks and actions happen as one atomic operation.
Database Constraints: Enforce unique limits in the database to block duplicate entries.
Synchronization: Use locking mechanisms to prevent concurrent request handling.
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Hello,
Limiting a single free account per user can trivially be bypassed by creating multiple profiles, so really we don't care about that (unverified) race condition.
Kind regards,
Cyril