CVE-2022-30511

9.8 CRITICAL

📋 TL;DR

CVE-2022-30511 is a critical SQL injection vulnerability in School Dormitory Management System 1.0 that allows attackers to execute arbitrary SQL commands via the accounts/view_details.php endpoint. This affects all users running the vulnerable version of this PHP web application. Successful exploitation could lead to complete database compromise.

💻 Affected Systems

Products:
  • School Dormitory Management System
Versions: Version 1.0
Operating Systems: Any OS running PHP
Default Config Vulnerable: ⚠️ Yes
Notes: Affects default installation with no modifications. Requires PHP environment with database backend.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database takeover allowing data theft, modification, deletion, and potential remote code execution via database functions.

🟠

Likely Case

Unauthorized access to sensitive student and staff data including personal information, credentials, and dormitory records.

🟢

If Mitigated

Limited impact with proper input validation and database permissions restricting attacker capabilities.

🌐 Internet-Facing: HIGH - Web application typically deployed with internet access, making it directly exploitable.
🏢 Internal Only: MEDIUM - If deployed internally only, risk is reduced but still significant for internal attackers.

🎯 Exploit Status

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

Simple SQL injection via GET/POST parameters. Public exploit code available on GitHub.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: Not available

Restart Required: No

Instructions:

No official patch exists. Replace vulnerable code with parameterized queries in accounts/view_details.php line 4.

🔧 Temporary Workarounds

Input Validation Filter

all

Add input validation to sanitize user inputs before SQL processing

Add input sanitization in accounts/view_details.php before line 4: $id = mysqli_real_escape_string($conn, $_GET['id']);

Web Application Firewall

all

Deploy WAF with SQL injection protection rules

🧯 If You Can't Patch

  • Isolate the system behind a firewall with strict access controls
  • Implement network segmentation to limit database access from web server

🔍 How to Verify

Check if Vulnerable:

Test accounts/view_details.php with SQL injection payloads like: accounts/view_details.php?id=1' OR '1'='1

Check Version:

Check PHP files for version comments or compare with source code from sourcecodester.com

Verify Fix Applied:

Verify parameterized queries are implemented and test with SQL injection payloads returns no database errors

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL syntax in web server logs
  • Multiple failed login attempts from single IP
  • Database error messages in application logs

Network Indicators:

  • HTTP requests with SQL keywords to accounts/view_details.php
  • Unusual database query patterns

SIEM Query:

source="web_server" AND (url="*accounts/view_details.php*" AND (query="*' OR*" OR query="*UNION*" OR query="*SELECT*"))

🔗 References

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