CVE-2024-53537

9.1 CRITICAL

📋 TL;DR

This directory traversal vulnerability in OpenPanel's File Manager allows attackers to access files outside the intended directory structure. Attackers could read, modify, or delete sensitive system files. All OpenPanel installations running vulnerable versions are affected.

💻 Affected Systems

Products:
  • OpenPanel
Versions: v0.2.1 to v0.3.4
Operating Systems: Any OS running OpenPanel
Default Config Vulnerable: ⚠️ Yes
Notes: All installations with File Manager enabled are vulnerable. The vulnerability is in the File Actions functionality.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise via reading sensitive files like /etc/shadow, /etc/passwd, or writing malicious files to achieve remote code execution.

🟠

Likely Case

Unauthorized access to configuration files, user data, or sensitive application files leading to data theft or further privilege escalation.

🟢

If Mitigated

Limited access to non-critical files if proper file permissions and access controls are implemented.

🌐 Internet-Facing: HIGH - Web-based file manager accessible from internet could be directly exploited by remote attackers.
🏢 Internal Only: MEDIUM - Internal attackers or compromised accounts could exploit this to escalate privileges or access sensitive data.

🎯 Exploit Status

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

Requires access to the File Manager interface. Likely requires authenticated access but could be combined with other vulnerabilities.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: v0.3.5

Vendor Advisory: https://openpanel.com/docs/changelog/0.3.5/#%EF%B8%8F-security-fixes

Restart Required: No

Instructions:

1. Backup your OpenPanel configuration and data. 2. Update OpenPanel to version 0.3.5 or later using your package manager. 3. Verify the update completed successfully. 4. Test File Manager functionality.

🔧 Temporary Workarounds

Disable File Manager

all

Temporarily disable the File Manager component until patching is possible

# Disable via OpenPanel admin interface or configuration file

Restrict File Manager Access

linux

Limit access to File Manager using firewall rules or authentication controls

# Example: Restrict to specific IPs using iptables
# iptables -A INPUT -p tcp --dport [OPENPANEL_PORT] -s [TRUSTED_IP] -j ACCEPT
# iptables -A INPUT -p tcp --dport [OPENPANEL_PORT] -j DROP

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate OpenPanel from sensitive systems
  • Enable detailed logging and monitoring for File Manager access patterns

🔍 How to Verify

Check if Vulnerable:

Check OpenPanel version via admin interface or command line. Versions between 0.2.1 and 0.3.4 inclusive are vulnerable.

Check Version:

openpanel --version or check OpenPanel admin dashboard

Verify Fix Applied:

Confirm OpenPanel version is 0.3.5 or later. Test File Manager functionality with safe directory traversal attempts.

📡 Detection & Monitoring

Log Indicators:

  • Unusual file access patterns in OpenPanel logs
  • Multiple failed directory traversal attempts
  • Access to system files from File Manager

Network Indicators:

  • Unusual HTTP requests with '../' patterns to File Manager endpoints

SIEM Query:

source="openpanel.log" AND ("../" OR "..\\" OR "%2e%2e%2f")

🔗 References

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