CVE-2023-2268
📋 TL;DR
CVE-2023-2268 is an information disclosure vulnerability in Plane version 0.7.1 that allows unauthenticated attackers to access all user files stored on the server. This affects any organization running the vulnerable Plane version, potentially exposing sensitive user data.
💻 Affected Systems
- Plane
📦 What is this software?
Plane by Plane
⚠️ Risk & Real-World Impact
Worst Case
Complete exposure of all user files including sensitive documents, credentials, and proprietary data leading to data breach, regulatory fines, and reputational damage.
Likely Case
Unauthorized access to user files containing business documents, personal information, and potentially sensitive configuration files.
If Mitigated
Limited exposure if files are encrypted at rest and access controls are properly implemented at the storage layer.
🎯 Exploit Status
The vulnerability is simple to exploit - attackers can directly access file endpoints without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.7.2 or later
Vendor Advisory: https://github.com/makeplane/plane/releases
Restart Required: Yes
Instructions:
1. Backup your Plane instance data. 2. Stop the Plane service. 3. Update to version 0.7.2 or later using your package manager or from GitHub releases. 4. Restart the Plane service. 5. Verify the fix is applied.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to Plane instance using firewall rules
iptables -A INPUT -p tcp --dport [plane_port] -s [trusted_network] -j ACCEPT
iptables -A INPUT -p tcp --dport [plane_port] -j DROP
Reverse Proxy Authentication
allPlace Plane behind a reverse proxy with authentication requirements
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to Plane instance
- Deploy a WAF or reverse proxy with authentication in front of the Plane instance
🔍 How to Verify
Check if Vulnerable:
Check if running Plane version 0.7.1 by accessing the web interface or checking package versionCheck Version:
docker inspect plane | grep version or check package manager (apt list --installed | grep plane)Verify Fix Applied:
Attempt to access user file endpoints without authentication - should return 401/403 errors📡 Detection & Monitoring
Log Indicators:
- Unauthenticated requests to file endpoints
- Multiple 200 responses to /api/files/* from unauthenticated users
Network Indicators:
- Unusual file download patterns from unauthenticated IPs
- High volume of requests to file endpoints
SIEM Query:
source="plane.log" AND (uri_path="/api/files/*" OR uri_path="/files/*") AND http_status=200 AND user="-"