CVE-2023-48687

9.8 CRITICAL

📋 TL;DR

Railway Reservation System v1.0 contains unauthenticated SQL injection vulnerabilities in the 'from' parameter of reservation.php. Attackers can execute arbitrary SQL commands without authentication, potentially compromising the entire database. All deployments of this specific software version are affected.

💻 Affected Systems

Products:
  • Railway Reservation System
Versions: v1.0
Operating Systems: Any OS running PHP with database backend
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of v1.0 are vulnerable by default. The vulnerability exists in the core reservation.php file.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise including data theft, data destruction, authentication bypass, and potential remote code execution on the database server.

🟠

Likely Case

Database information disclosure, credential theft, and potential privilege escalation within the application.

🟢

If Mitigated

Limited impact with proper input validation and parameterized queries preventing SQL injection.

🌐 Internet-Facing: HIGH - Unauthenticated exploitation allows any internet user to attack exposed systems.
🏢 Internal Only: HIGH - Even internal systems are vulnerable to insider threats or compromised internal accounts.

🎯 Exploit Status

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

SQL injection is well-understood with many automated tools available. The unauthenticated nature makes exploitation trivial.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None found

Restart Required: No

Instructions:

1. Contact the vendor for patched version. 2. If unavailable, implement parameterized queries in reservation.php. 3. Add input validation for the 'from' parameter. 4. Test thoroughly before deployment.

🔧 Temporary Workarounds

Web Application Firewall (WAF)

all

Deploy WAF rules to block SQL injection patterns in the 'from' parameter

Depends on WAF platform - configure SQL injection protection rules

Input Validation Filter

all

Add server-side validation to restrict 'from' parameter to expected values

Modify reservation.php to validate 'from' parameter before database query

🧯 If You Can't Patch

  • Isolate the system behind strict network segmentation
  • Implement database-level controls: minimal privileges, query logging, and regular backups

🔍 How to Verify

Check if Vulnerable:

Test reservation.php with SQL injection payloads in the 'from' parameter (e.g., ' OR '1'='1)

Check Version:

Check application version in admin panel or configuration files

Verify Fix Applied:

Verify that SQL injection payloads no longer execute and return error messages

📡 Detection & Monitoring

Log Indicators:

  • Unusual database queries from reservation.php
  • SQL syntax errors in application logs
  • Multiple failed login attempts following SQL injection

Network Indicators:

  • HTTP requests to reservation.php with SQL keywords in parameters
  • Unusual database traffic patterns

SIEM Query:

source="web_logs" AND uri="*/reservation.php*" AND (param="*from=*SELECT*" OR param="*from=*UNION*" OR param="*from=*OR*1=1*")

🔗 References

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