CVE-2023-44164
📋 TL;DR
This CVE describes an SQL injection vulnerability in the Email parameter of process_login.php. Attackers can inject malicious SQL commands to manipulate the database, potentially compromising the entire application. Any system using the vulnerable software with exposed login functionality is affected.
💻 Affected Systems
- Unknown specific product - appears to be custom PHP application
📦 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
Authentication bypass allowing unauthorized access, data exfiltration, and potential privilege escalation.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only error messages or minor data exposure.
🎯 Exploit Status
SQL injection via login parameter typically has low complexity; weaponization status unknown due to limited public information
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None provided in references
Restart Required: No
Instructions:
1. Locate process_login.php file
2. Implement parameterized queries or prepared statements
3. Add input validation for Email parameter
4. Sanitize all user inputs before database interaction
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy WAF with SQL injection rules to block malicious requests
Input Validation Filter
allAdd server-side validation to reject suspicious email patterns
// PHP example: if(!filter_var($email, FILTER_VALIDATE_EMAIL)) { reject; }
🧯 If You Can't Patch
- Isolate the vulnerable system behind strict network segmentation
- Implement database user with minimal privileges (read-only if possible)
🔍 How to Verify
Check if Vulnerable:
Test Email parameter with SQL injection payloads like ' OR '1'='1Check Version:
Unknown - custom applicationVerify Fix Applied:
Attempt SQL injection tests; verify prepared statements are used in code review📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple failed login attempts with SQL-like patterns
- Database query syntax errors
Network Indicators:
- HTTP POST requests to process_login.php with SQL keywords in parameters
- Unusual database port traffic from web server
SIEM Query:
source="web_logs" AND uri="/process_login.php" AND (param="Email" AND value MATCHES "(?i)(union|select|insert|delete|update|or|and|--|#|;)")