CVE-2024-40482

9.8 CRITICAL

📋 TL;DR

This vulnerability allows attackers to upload arbitrary PHP files to the Kashipara Live Membership System v1.0 via the /Membership/edit_member.php endpoint. Successful exploitation enables remote code execution on the web server, potentially compromising the entire system. All deployments of Kashipara Live Membership System v1.0 are affected.

💻 Affected Systems

Products:
  • Kashipara Live Membership System
Versions: v1.0
Operating Systems: Any OS running PHP web server
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in default installation with no special configuration required.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete server takeover with attacker gaining full administrative control, data theft, installation of persistent backdoors, and lateral movement to other systems.

🟠

Likely Case

Webshell deployment leading to data exfiltration, credential harvesting, and use of compromised server for further attacks.

🟢

If Mitigated

Attack blocked at web application firewall level with no file uploads reaching vulnerable endpoint.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authentication to access the edit_member.php endpoint, but once authenticated, file upload is straightforward.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Not available

Restart Required: No

Instructions:

No official patch available. Consider migrating to alternative software or implementing workarounds.

🔧 Temporary Workarounds

File Upload Restriction

all

Implement server-side validation to restrict uploaded file types to non-executable formats only.

Modify edit_member.php to validate file extensions and MIME types before saving

Web Application Firewall Rules

all

Block PHP file uploads to the vulnerable endpoint using WAF rules.

Add WAF rule: Block requests to /Membership/edit_member.php with .php files in upload

🧯 If You Can't Patch

  • Disable the /Membership/edit_member.php endpoint entirely if not required
  • Implement strict authentication and authorization controls with multi-factor authentication

🔍 How to Verify

Check if Vulnerable:

Attempt to upload a PHP file via the /Membership/edit_member.php endpoint and check if it's saved with .php extension.

Check Version:

Check software version in admin panel or readme files

Verify Fix Applied:

Test that PHP file uploads are rejected with proper error messages and only allowed file types are accepted.

📡 Detection & Monitoring

Log Indicators:

  • Unusual file uploads to /Membership/edit_member.php
  • PHP files appearing in upload directories
  • Webshell access patterns in access logs

Network Indicators:

  • POST requests to /Membership/edit_member.php with file uploads
  • Unexpected outbound connections from web server

SIEM Query:

source="web_logs" AND uri="/Membership/edit_member.php" AND method="POST" AND (file_extension=".php" OR content_type="application/x-php")

🔗 References

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