CVE-2024-39319

5.3 MEDIUM

📋 TL;DR

This vulnerability in the Aimeos frontend controller package allows attackers to disable subscriptions and reviews belonging to other customers through insecure direct object references. It affects e-commerce projects using vulnerable versions of the ai-controller-frontend package. The issue stems from insufficient access controls that fail to verify user permissions before processing subscription/review modification requests.

💻 Affected Systems

Products:
  • aimeos/ai-controller-frontend
Versions: All versions prior to 2024.4.2, 2023.10.9, 2022.10.8, 2021.10.8, and 2020.10.15
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Affects Aimeos-based e-commerce applications using the vulnerable controller package. The vulnerability is present in the default configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

An attacker could systematically disable all customer subscriptions and reviews, causing significant business disruption, customer dissatisfaction, and potential revenue loss for the e-commerce platform.

🟠

Likely Case

Targeted attacks disabling specific customers' subscriptions and reviews, leading to customer complaints and administrative overhead to restore affected accounts.

🟢

If Mitigated

With proper access controls, impact is limited to authorized users only modifying their own subscriptions and reviews.

🌐 Internet-Facing: HIGH - The vulnerability affects frontend controllers typically exposed to internet users in e-commerce applications.
🏢 Internal Only: LOW - The vulnerability requires access to the frontend interface, which is typically internet-facing in e-commerce deployments.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authenticated access but minimal technical skill. The vulnerability is an IDOR (Insecure Direct Object Reference) that can be exploited by manipulating object identifiers in requests.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2024.4.2, 2023.10.9, 2022.10.8, 2021.10.8, or 2020.10.15 depending on your major version

Vendor Advisory: https://github.com/aimeos/ai-controller-frontend/security/advisories

Restart Required: No

Instructions:

1. Identify your current ai-controller-frontend package version. 2. Update to the patched version matching your major release: 2024.x → 2024.4.2, 2023.x → 2023.10.9, 2022.x → 2022.10.8, 2021.x → 2021.10.8, 2020.x → 2020.10.15. 3. Run composer update aimeos/ai-controller-frontend. 4. Clear any application caches.

🔧 Temporary Workarounds

Implement Access Control Middleware

all

Add custom middleware to verify user ownership before processing subscription/review modification requests

Implement custom controller middleware that validates user_id matches the resource owner before processing PATCH/DELETE requests to subscription/review endpoints

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to detect and block suspicious subscription/review modification patterns
  • Enable detailed logging for all subscription and review modification operations and monitor for unauthorized access attempts

🔍 How to Verify

Check if Vulnerable:

Check composer.json or run 'composer show aimeos/ai-controller-frontend' to see if version is below the patched versions for your major release

Check Version:

composer show aimeos/ai-controller-frontend | grep versions

Verify Fix Applied:

After updating, verify the version shows as patched and test that users cannot modify other users' subscriptions/reviews by attempting to access another user's resources

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed authorization attempts for subscription/review modifications
  • User modifying subscriptions/reviews with IDs not belonging to their account
  • Unusual pattern of subscription/review deactivations

Network Indicators:

  • HTTP PATCH/DELETE requests to subscription/review endpoints with mismatched user IDs
  • Rapid sequential requests to different subscription/review IDs

SIEM Query:

source="web_logs" AND (uri_path="/subscription/*" OR uri_path="/review/*") AND (http_method="PATCH" OR http_method="DELETE") AND user_id != resource_owner_id

🔗 References

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