CVE-2016-4337
📋 TL;DR
This CVE describes a SQL injection vulnerability in Ktools.net Photostore's mgr.login.php file that allows remote attackers to execute arbitrary SQL commands via the email parameter during password recovery. Attackers can potentially access, modify, or delete database content. All Photostore installations before version 4.7.5 are affected.
💻 Affected Systems
- Ktools.net Photostore
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, authentication bypass, remote code execution, and full system takeover.
Likely Case
Database information disclosure, user credential theft, and potential privilege escalation.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation in place.
🎯 Exploit Status
Multiple public exploit scripts available; exploitation requires sending crafted HTTP requests to the vulnerable endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.7.5 and later
Vendor Advisory: Not publicly documented by vendor
Restart Required: No
Instructions:
1. Download Photostore 4.7.5 or later from Ktools.net. 2. Backup current installation and database. 3. Replace existing files with patched version. 4. Verify functionality.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to sanitize email parameter input
Modify mgr.login.php to validate email format and escape special characters
WAF Rule
allImplement web application firewall rules to block SQL injection patterns
Add WAF rule: Detect and block SQL keywords in email parameter of recover_login requests
🧯 If You Can't Patch
- Block access to /mgr.login.php at network perimeter or web server level
- Implement strict input validation and parameterized queries in application code
🔍 How to Verify
Check if Vulnerable:
Check Photostore version in admin panel or by examining file headers; versions <4.7.5 are vulnerableCheck Version:
Check Photostore admin dashboard or examine version.php file contentsVerify Fix Applied:
Confirm version is 4.7.5+ and test recover_login functionality with SQL injection test payloads📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in web server logs
- Multiple failed recover_login attempts with SQL syntax in parameters
Network Indicators:
- HTTP POST requests to mgr.login.php with SQL keywords in email parameter
SIEM Query:
source="web_logs" AND uri="/mgr.login.php" AND (param="email" AND value CONTAINS "' OR '")