CVE-2017-17630
📋 TL;DR
CVE-2017-17630 is a critical SQL injection vulnerability in Yoga Class Script 1.0 that allows attackers to execute arbitrary SQL commands via the /list city parameter. This affects all installations of Yoga Class Script 1.0, potentially compromising the entire database and web application. Attackers can steal sensitive data, modify database contents, or gain unauthorized access to the system.
💻 Affected Systems
- Yoga Class Script
📦 What is this software?
Yoga Class Script by Yoga Class Script Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, authentication bypass, and potential remote code execution on the underlying server.
Likely Case
Database information disclosure including user credentials, personal data, and administrative access leading to full system compromise.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing SQL injection execution.
🎯 Exploit Status
Public exploit code is available and requires no authentication. Simple HTTP requests can trigger the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider migrating to alternative software or implementing custom fixes with parameterized queries and input validation.
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy a WAF with SQL injection protection rules to block malicious requests.
Input Validation Filter
allImplement server-side input validation to sanitize the city parameter before processing.
🧯 If You Can't Patch
- Isolate the vulnerable system behind a firewall with strict access controls
- Implement network segmentation to limit potential lateral movement
🔍 How to Verify
Check if Vulnerable:
Test the /list endpoint with SQL injection payloads like: /list?city=' OR '1'='1Check Version:
Check the software version in the application's admin panel or configuration files.Verify Fix Applied:
Verify that SQL injection payloads no longer execute and return error messages or sanitized responses.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in web server logs
- Multiple requests with SQL keywords in city parameter
- Requests with special characters like quotes, semicolons, or comments
Network Indicators:
- HTTP requests containing SQL injection patterns in query parameters
- Unusual database connection patterns from web server
SIEM Query:
source="web_server_logs" AND (city="*' OR*" OR city="*;--*" OR city="*UNION*" OR city="*SELECT*" OR city="*INSERT*" OR city="*UPDATE*")