CVE-2022-30887

9.8 CRITICAL

📋 TL;DR

Pharmacy Management System v1.0 contains a critical remote code execution vulnerability in the /php_action/editProductImage.php component. Attackers can upload malicious image files to execute arbitrary code on the server. Any organization using this vulnerable software version is affected.

💻 Affected Systems

Products:
  • Pharmacy Management System
Versions: v1.0
Operating Systems: Any OS running PHP web server
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all installations of version 1.0. The vulnerability is in the core application code.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise allowing attackers to steal sensitive pharmacy data, install ransomware, pivot to other systems, or establish persistent backdoors.

🟠

Likely Case

Attackers upload web shells to gain administrative access, exfiltrate patient records and payment information, or disrupt pharmacy operations.

🟢

If Mitigated

With proper file upload validation and web application firewalls, exploitation attempts are blocked, though the underlying vulnerability remains.

🌐 Internet-Facing: HIGH - The vulnerable endpoint is accessible via web interface, making internet-facing instances immediately exploitable.
🏢 Internal Only: HIGH - Even internal instances are vulnerable to insider threats or attackers who breach the network perimeter.

🎯 Exploit Status

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

Public exploit code is available on Packet Storm. Attack requires only web access to the vulnerable endpoint.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: Not available

Restart Required: No

Instructions:

No official patch exists. Recommended action is to upgrade to a newer version if available, or implement workarounds and monitoring.

🔧 Temporary Workarounds

Block vulnerable endpoint

all

Use web server configuration to block access to /php_action/editProductImage.php

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

Implement file upload restrictions

all

Configure web application firewall to block malicious file uploads

# ModSecurity rule: SecRule REQUEST_FILENAME "@rx /php_action/editProductImage\.php$" "id:1001,phase:2,deny"

🧯 If You Can't Patch

  • Isolate the Pharmacy Management System in a separate network segment with strict firewall rules
  • Implement application-level monitoring for file upload activities and suspicious PHP execution

🔍 How to Verify

Check if Vulnerable:

Check if /php_action/editProductImage.php exists and accepts file uploads without proper validation. Test with safe test files to confirm.

Check Version:

Check application version in admin panel or look for version markers in source code/configuration files.

Verify Fix Applied:

Attempt to access /php_action/editProductImage.php - should return 403/404. Test file upload functionality with various file types.

📡 Detection & Monitoring

Log Indicators:

  • POST requests to /php_action/editProductImage.php with unusual file extensions
  • File uploads with PHP code in image metadata
  • Execution of unexpected system commands from web process

Network Indicators:

  • Unusual outbound connections from web server
  • Large data exfiltration from pharmacy database

SIEM Query:

source="web_logs" AND (uri="/php_action/editProductImage.php" OR file_upload="*.php" OR file_upload="*.phar")

🔗 References

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