CVE-2024-6948

6.3 MEDIUM

📋 TL;DR

This critical vulnerability in Gargaj wuhu's Slide Editor component allows remote attackers to upload arbitrary files via the newSlideFile parameter in slideeditor.php. This unrestricted file upload can lead to remote code execution or system compromise. All deployments using affected versions are vulnerable to remote exploitation.

💻 Affected Systems

Products:
  • Gargaj wuhu
Versions: Up to commit 3faad49bfcc3895e9ff76a591d05c8941273d120 (rolling release, no specific version numbers)
Operating Systems: All platforms running the software
Default Config Vulnerable: ⚠️ Yes
Notes: Continuous delivery model means all deployments up to the vulnerable commit are affected. No version details available due to rolling releases.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete system compromise, data theft, and lateral movement within the network.

🟠

Likely Case

Webshell deployment allowing persistent access, data exfiltration, and further exploitation of the server.

🟢

If Mitigated

File upload blocked or restricted to safe extensions only, preventing code execution.

🌐 Internet-Facing: HIGH - Remote exploitation possible without authentication, making internet-facing instances immediate targets.
🏢 Internal Only: HIGH - Even internal instances are vulnerable to authenticated or network-accessible attackers.

🎯 Exploit Status

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

Exploit code is publicly available in GitHub repositories. Remote exploitation requires no authentication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown - check for commits after 3faad49bfcc3895e9ff76a591d05c8941273d120

Vendor Advisory: None provided in CVE data

Restart Required: No

Instructions:

1. Check the project repository for fixes after commit 3faad49bfcc3895e9ff76a591d05c8941273d120
2. Update to latest version if available
3. Monitor project announcements for security patches

🔧 Temporary Workarounds

Block access to slideeditor.php

all

Temporarily disable the vulnerable endpoint via web server configuration

# Apache: RewriteRule ^/slideeditor\.php$ - [F]
# Nginx: location ~ /slideeditor\.php$ { deny all; }

Implement file upload restrictions

all

Add server-side validation to restrict file uploads to safe extensions

# Modify slideeditor.php to validate file extensions before processing

🧯 If You Can't Patch

  • Implement WAF rules to block malicious file uploads to slideeditor.php
  • Restrict network access to the application to trusted IPs only

🔍 How to Verify

Check if Vulnerable:

Check if slideeditor.php exists and accepts file uploads without proper validation. Test by attempting to upload a file with executable extension.

Check Version:

git log --oneline -1 (to check current commit hash)

Verify Fix Applied:

Verify that file uploads to slideeditor.php are properly validated and restricted to safe file types only.

📡 Detection & Monitoring

Log Indicators:

  • Unusual file uploads to slideeditor.php
  • Files with executable extensions (.php, .jsp, .asp) in upload directories
  • Multiple failed upload attempts

Network Indicators:

  • POST requests to /slideeditor.php with file uploads
  • Unusual outbound connections from the server after uploads

SIEM Query:

source="web_logs" AND uri="/slideeditor.php" AND method="POST" AND (file_extension="php" OR file_extension="jsp" OR file_extension="asp")

🔗 References

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