CVE-2022-28030

9.8 CRITICAL

📋 TL;DR

Simple Real Estate Portal System v1.0 contains a SQL injection vulnerability in the delete_estate function that allows attackers to execute arbitrary SQL commands. This affects all users running the vulnerable version of this web application. Attackers can potentially read, modify, or delete database contents.

💻 Affected Systems

Products:
  • Simple Real Estate Portal System
Versions: v1.0
Operating Systems: Any
Default Config Vulnerable: ⚠️ Yes
Notes: Affects web servers running the vulnerable PHP application regardless of underlying OS.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of the database including data theft, data destruction, and potential remote code execution if database permissions allow.

🟠

Likely Case

Unauthorized access to sensitive real estate data, client information, and potential privilege escalation within the application.

🟢

If Mitigated

Limited impact with proper input validation and parameterized queries in place.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Public proof-of-concept available showing SQL injection via the delete_estate parameter.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None known

Restart Required: No

Instructions:

No official patch available. Consider migrating to alternative software or implementing custom fixes.

🔧 Temporary Workarounds

Input Validation Filter

all

Implement strict input validation for the delete_estate parameter to only accept expected values.

Modify /reps/classes/Master.php to validate and sanitize user input before SQL execution

WAF Rule Implementation

all

Deploy web application firewall rules to block SQL injection patterns targeting the vulnerable endpoint.

Add WAF rule: Block requests to /reps/classes/Master.php?f=delete_estate with SQL injection patterns

🧯 If You Can't Patch

  • Disable or restrict access to /reps/classes/Master.php endpoint
  • Implement network segmentation to isolate the vulnerable system

🔍 How to Verify

Check if Vulnerable:

Test the endpoint with SQL injection payloads: /reps/classes/Master.php?f=delete_estate&id=1' OR '1'='1

Check Version:

Check application version in configuration files or about pages

Verify Fix Applied:

Test with same payloads after implementing fixes - should return error or no SQL execution

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL errors in web server logs
  • Multiple requests to Master.php with SQL patterns
  • Failed authentication attempts followed by SQL injection attempts

Network Indicators:

  • HTTP requests containing SQL keywords (SELECT, UNION, etc.) targeting the vulnerable endpoint
  • Unusual database query patterns from web server

SIEM Query:

source="web_logs" AND uri="/reps/classes/Master.php" AND (query="*SELECT*" OR query="*UNION*" OR query="*OR*1=1*")

🔗 References

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