CVE-2023-53877
📋 TL;DR
Bus Reservation System 1.1 contains a SQL injection vulnerability in the pickup_id parameter that allows attackers to execute arbitrary SQL queries. This enables attackers to steal sensitive data from the database, including user credentials and reservation information. All installations of Bus Reservation System 1.1 are affected.
💻 Affected Systems
- Bus Reservation System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to theft of all sensitive data (passwords, personal information, payment details), potential authentication bypass, and full system takeover.
Likely Case
Extraction of user credentials, personal data, and reservation information leading to data breach and potential credential reuse attacks.
If Mitigated
Limited data exposure if proper input validation and parameterized queries are implemented, with database permissions properly restricted.
🎯 Exploit Status
Exploit code is publicly available on Exploit-DB. Attackers can use automated tools like SQLmap to exploit this vulnerability with minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.phpjabbers.com/bus-reservation-system/
Restart Required: No
Instructions:
1. Check vendor website for updated version. 2. If no patch available, implement workarounds. 3. Consider migrating to alternative software if vendor is unresponsive.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and parameterized queries for the pickup_id parameter
// PHP example using prepared statements:
$stmt = $conn->prepare('SELECT * FROM reservations WHERE pickup_id = ?');
$stmt->bind_param('s', $pickup_id);
$stmt->execute();
Web Application Firewall (WAF)
allDeploy WAF rules to block SQL injection patterns in the pickup_id parameter
# ModSecurity rule example:
SecRule ARGS:pickup_id "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Attempt'"
🧯 If You Can't Patch
- Implement network segmentation to isolate the vulnerable system from sensitive data
- Deploy intrusion detection systems to monitor for SQL injection attempts
🔍 How to Verify
Check if Vulnerable:
Test the pickup_id parameter with SQL injection payloads like ' OR '1'='1 or use automated tools like SQLmap: sqlmap -u 'http://target/page.php?pickup_id=1' --dbsCheck Version:
Check the software version in the admin panel or review the source code for version informationVerify Fix Applied:
Test the fixed parameter with the same SQL injection payloads to ensure they are properly sanitized and rejected📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts from single IP
- Long or unusual parameter values in pickup_id
Network Indicators:
- SQL keywords in HTTP GET parameters (SELECT, UNION, etc.)
- Unusual database query patterns
- Multiple requests with different pickup_id values
SIEM Query:
source="web_logs" AND (pickup_id="*' OR*" OR pickup_id="*UNION*" OR pickup_id="*SELECT*" OR pickup_id="*--*" OR pickup_id="*/*")