CVE-2024-37847

8.8 HIGH

📋 TL;DR

This vulnerability allows attackers to upload malicious files to MangoOS and Mango API systems, potentially leading to remote code execution. It affects MangoOS versions before 5.1.4 and Mango API versions before 4.5.5. Attackers can exploit this to take control of affected systems.

💻 Affected Systems

Products:
  • MangoOS
  • Mango API
Versions: MangoOS < 5.1.4, Mango API < 4.5.5
Operating Systems: Any OS running affected software
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all deployments with file upload functionality enabled. The vulnerability combines path traversal with insufficient file validation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with attacker gaining root/admin access, data exfiltration, ransomware deployment, and persistent backdoor installation.

🟠

Likely Case

Web server compromise leading to data theft, defacement, or use as pivot point for internal network attacks.

🟢

If Mitigated

File upload attempts blocked at web application firewall level with no successful exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Public disclosure includes technical details and proof-of-concept. Exploitation requires file upload capability but no authentication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: MangoOS 5.1.4, Mango API 4.5.5

Vendor Advisory: https://github.com/herombey/Disclosures/blob/main/CVE-2024-37847%20File%20Upload%20Path%20Traversal.pdf

Restart Required: Yes

Instructions:

1. Backup current configuration and data. 2. Download patched version from official vendor source. 3. Stop MangoOS/Mango API services. 4. Install updated version. 5. Restart services. 6. Verify functionality.

🔧 Temporary Workarounds

Web Application Firewall Rules

all

Block file upload requests containing path traversal sequences and executable file extensions.

# Example ModSecurity rule: SecRule ARGS "\.\./" "id:1001,phase:2,deny,msg:'Path Traversal Attempt'

File Upload Restriction

all

Disable file upload functionality if not required, or restrict to specific trusted users/IPs.

# In web server config, remove or comment out file upload endpoints

🧯 If You Can't Patch

  • Implement strict file type validation and sanitize all file names to prevent path traversal.
  • Deploy network segmentation to isolate affected systems and monitor for suspicious upload activity.

🔍 How to Verify

Check if Vulnerable:

Check current version against affected versions. Test file upload endpoint with crafted filename containing '../' sequences.

Check Version:

mangoos --version or check web interface admin panel for version information

Verify Fix Applied:

After patching, attempt to upload file with malicious payload and verify it's rejected. Check version matches patched release.

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed file upload attempts
  • Requests containing '../' in filenames
  • Uploads of executable file types (.php, .jsp, .exe)

Network Indicators:

  • Unusual outbound connections from web server
  • Large file uploads to unexpected paths

SIEM Query:

source="web_logs" AND (uri="*upload*" AND (filename="*../*" OR filename="*.php" OR filename="*.jsp"))

🔗 References

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