CVE-2024-0495: Kashipara Billing Software SQL Injection

CVE-2024-0495 Overview

A critical SQL injection vulnerability has been identified in Kashipara Billing Software version 1.0. This vulnerability exists in the party_submit.php file within the HTTP POST Request Handler component. Attackers can exploit this flaw by manipulating the party_name argument, allowing them to inject malicious SQL queries. The attack can be initiated remotely without authentication, potentially leading to complete database compromise, unauthorized data access, data manipulation, or full system takeover.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to bypass authentication, extract sensitive data, modify database records, or potentially gain unauthorized access to the underlying system hosting the billing software.

Affected Products

• Kashipara Billing Software 1.0

Discovery Timeline

• 2024-01-13 - CVE-2024-0495 published to NVD
• 2024-11-21 - Last updated in NVD database

Technical Details for CVE-2024-0495

Vulnerability Analysis

This vulnerability is classified as CWE-89 (SQL Injection), a widespread web application security flaw that occurs when user-supplied input is improperly sanitized before being included in SQL queries. In the case of Kashipara Billing Software, the party_submit.php endpoint fails to properly validate or sanitize the party_name parameter received via HTTP POST requests before incorporating it into database queries.

The exploitation of this vulnerability requires no authentication or user interaction. An attacker can craft malicious HTTP POST requests containing SQL injection payloads in the party_name field. When processed by the vulnerable application, these payloads are executed directly against the backend database, potentially allowing attackers to read, modify, or delete sensitive billing data, bypass authentication mechanisms, or execute administrative operations on the database server.

Root Cause

The root cause of this vulnerability is the lack of proper input validation and parameterized queries in the party_submit.php file. The application directly concatenates user-supplied input from the party_name POST parameter into SQL query strings without proper sanitization or the use of prepared statements. This allows attackers to break out of the intended query structure and inject arbitrary SQL commands.

Attack Vector

The attack vector for CVE-2024-0495 is network-based, allowing remote exploitation without any prerequisites. An attacker sends a specially crafted HTTP POST request to the party_submit.php endpoint with a malicious SQL payload in the party_name parameter. The vulnerable application processes this input without sanitization, executing the injected SQL commands against the database.

The vulnerability has been publicly disclosed and documentation is available. The exploit requires no special privileges or user interaction, making it particularly dangerous for internet-facing installations of the Kashipara Billing Software. For technical details on the exploitation mechanism, refer to the GitHub SQL Injection Documentation.

Detection Methods for CVE-2024-0495

Indicators of Compromise

• Anomalous HTTP POST requests to party_submit.php containing SQL syntax characters such as single quotes, double quotes, semicolons, or SQL keywords in the party_name parameter
• Database error messages in application logs indicating malformed SQL queries
• Unexpected database queries or bulk data extraction operations in database audit logs
• Evidence of authentication bypass or unauthorized access to billing records

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in requests to party_submit.php
• Enable detailed logging on the application server to capture all POST requests to the billing software endpoints
• Implement database activity monitoring to detect unusual query patterns or data exfiltration attempts
• Use intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

• Monitor access logs for repeated requests to party_submit.php with varying parameter values, which may indicate automated SQL injection testing
• Set up alerts for database errors related to syntax issues in SQL queries
• Review database audit logs for unauthorized SELECT, UPDATE, DELETE, or administrative operations
• Implement real-time monitoring for outbound data transfers from the database server

How to Mitigate CVE-2024-0495

Immediate Actions Required

• Restrict network access to the Kashipara Billing Software to trusted IP addresses only
• Implement a Web Application Firewall (WAF) with SQL injection protection in front of the application
• Review and audit database access privileges to ensure the principle of least privilege
• Consider taking the application offline until proper remediation can be implemented

Patch Information

No official vendor patch has been identified for this vulnerability at the time of publication. Organizations using Kashipara Billing Software 1.0 should contact the vendor directly to inquire about security updates. Additional information may be available through VulDB #250600 and VulDB CTI #250600.

Workarounds

• Deploy a WAF or reverse proxy with SQL injection filtering rules in front of the application
• Implement input validation at the application or proxy level to reject requests containing SQL metacharacters in the party_name field
• Restrict database user permissions to the minimum required for application functionality
• Isolate the billing software on a separate network segment with strict access controls
• If source code access is available, modify party_submit.php to use parameterized queries or prepared statements

# Example WAF rule for ModSecurity to block SQL injection attempts
SecRule ARGS:party_name "@detectSQLi" \
    "id:10001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in party_name parameter',\
    logdata:'Matched Data: %{TX.0}'"