CVE-2023-51386
📋 TL;DR
This vulnerability in Sandbox Accounts for Events allows authenticated users to access sensitive event data by sending crafted requests to the events API. Users can read information about planned events, timeframes, budgets, and owner email addresses, potentially gaining unauthorized insights into upcoming events. This affects all users of the software who have authenticated access to the system.
💻 Affected Systems
- Sandbox Accounts for Events
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Unauthorized users gain access to sensitive event planning data, join restricted events, and potentially use budget information for financial attacks or social engineering against event owners.
Likely Case
Authenticated users access event details they shouldn't see, potentially joining events without invitation and gaining competitive intelligence about upcoming activities.
If Mitigated
With proper access controls and monitoring, impact is limited to potential data exposure that can be detected and contained.
🎯 Exploit Status
Exploitation requires authenticated access but involves simple API request manipulation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.10.0
Vendor Advisory: https://github.com/awslabs/sandbox-accounts-for-events/security/advisories/GHSA-p7w3-j66h-m7mx
Restart Required: Yes
Instructions:
1. Backup current deployment. 2. Update to version 1.10.0 or later. 3. Restart the application. 4. Verify proper functionality.
🔧 Temporary Workarounds
Restrict API Access
allImplement network-level restrictions to limit access to the events API endpoints
Enhanced Authentication
allImplement additional authentication checks for sensitive API endpoints
🧯 If You Can't Patch
- Implement strict access controls and monitoring for events API endpoints
- Deploy web application firewall rules to detect and block suspicious API requests
🔍 How to Verify
Check if Vulnerable:
Check if running version is below 1.10.0 and test authenticated API access to events endpointsCheck Version:
Check application version in web interface or deployment configurationVerify Fix Applied:
Verify version is 1.10.0 or later and test that unauthorized event data access is prevented📡 Detection & Monitoring
Log Indicators:
- Unusual patterns of API requests to events endpoints
- Multiple failed authorization attempts followed by successful data access
Network Indicators:
- Unusual volume of requests to /api/events endpoints
- Requests with unusual parameters or payloads
SIEM Query:
source="application_logs" AND (uri_path="/api/events" OR endpoint="events") AND status=200 AND user NOT IN authorized_users🔗 References
- https://github.com/awslabs/sandbox-accounts-for-events/commit/f30a0662f0a28734eb33c5868cccc1c319eb6e79
- https://github.com/awslabs/sandbox-accounts-for-events/security/advisories/GHSA-p7w3-j66h-m7mx
- https://github.com/awslabs/sandbox-accounts-for-events/commit/f30a0662f0a28734eb33c5868cccc1c319eb6e79
- https://github.com/awslabs/sandbox-accounts-for-events/security/advisories/GHSA-p7w3-j66h-m7mx
