CVE-2022-30518

9.8 CRITICAL

📋 TL;DR

This CVE describes a SQL injection vulnerability in ChatBot Application with a Suggestion Feature 1.0. Attackers can inject malicious SQL commands via the id parameter in the admin responses view page, potentially allowing unauthorized database access. Organizations using this specific chatbot software version are affected.

💻 Affected Systems

Products:
  • ChatBot Application with a Suggestion Feature
Versions: 1.0
Operating Systems: Any OS running PHP web server
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in default installation at /simple_chat_bot/admin/responses/view_response.php

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

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

🟠

Likely Case

Unauthorized access to sensitive chatbot data, user information extraction, and potential privilege escalation within the application.

🟢

If Mitigated

Limited impact with proper input validation, parameterized queries, and database permission restrictions in place.

🌐 Internet-Facing: HIGH - The vulnerable endpoint is accessible via web interface, making it directly exploitable from the internet.
🏢 Internal Only: MEDIUM - Internal attackers could still exploit this to gain unauthorized access to sensitive data.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires admin access to reach the vulnerable endpoint, but SQL injection payloads are simple and well-documented.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Not available

Restart Required: No

Instructions:

No official patch available. Consider replacing with alternative software or implementing custom fixes.

🔧 Temporary Workarounds

Input Validation and Sanitization

all

Add server-side validation to ensure id parameter contains only numeric values

Modify view_response.php to validate $_GET['id'] with is_numeric() or filter_var()

Parameterized Query Implementation

all

Replace direct SQL concatenation with prepared statements

Replace $id = $_GET['id']; $sql = "SELECT * FROM responses WHERE id='$id'" with prepared statements using PDO or mysqli

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block SQL injection patterns
  • Restrict access to /simple_chat_bot/admin/ directory to specific IP addresses only

🔍 How to Verify

Check if Vulnerable:

Test the endpoint with SQL injection payloads like: /simple_chat_bot/admin/responses/view_response.php?id=1' OR '1'='1

Check Version:

Check application files for version information or readme files

Verify Fix Applied:

Test with same payloads and verify they are rejected or sanitized without executing SQL

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL error messages in web server logs
  • Multiple requests to view_response.php with suspicious id parameters

Network Indicators:

  • HTTP requests containing SQL keywords (UNION, SELECT, etc.) in URL parameters

SIEM Query:

source="web_server" AND (url="*view_response.php*" AND (url="*' OR*" OR url="*UNION*" OR url="*SELECT*"))

🔗 References

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