CVE-2016-3694 in Shopsoftware
Summary
by MITRE
Multiple SQL injection vulnerabilities in modified eCommerce Shopsoftware 2.0.0.0 revision 9678, when the easybill-module is not installed, allow remote attackers to execute arbitrary SQL commands via the (1) orders_status or (2) customers_status parameter to api/easybill/easybillcsv.php.
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Analysis
by VulDB Data Team • 02/01/2025
The vulnerability identified as CVE-2016-3694 represents a critical SQL injection flaw within the modified eCommerce Shopsoftware version 2.0.0.0 revision 9678. This security weakness specifically affects systems where the easybill-module is not installed, creating a dangerous attack vector for remote adversaries seeking to compromise the underlying database infrastructure. The vulnerability manifests through two distinct parameter injection points within the api/easybill/easybillcsv.php endpoint, namely orders_status and customers_status parameters, which when improperly sanitized, enable attackers to inject malicious SQL commands directly into the database query execution flow.
The technical implementation of this vulnerability stems from inadequate input validation and parameter sanitization within the software's API handling mechanism. When the system processes requests containing these specific parameters, it fails to properly escape or validate user-supplied data before incorporating it into SQL query strings. This fundamental flaw allows attackers to manipulate the intended database operations by injecting malicious SQL syntax that can alter, retrieve, or delete sensitive data. The vulnerability aligns with CWE-89, which specifically addresses SQL injection weaknesses where untrusted data is directly included in SQL commands without proper sanitization measures. The attack surface is particularly concerning as it targets the administrative API endpoint, potentially providing attackers with elevated privileges and access to customer data, order information, and other sensitive business-critical data stored within the database.
The operational impact of this vulnerability extends beyond simple data theft, as it creates opportunities for complete system compromise and persistent access to sensitive commercial information. Remote attackers can leverage this vulnerability to execute arbitrary SQL commands, potentially leading to data exfiltration, database manipulation, or even system takeover scenarios. The vulnerability affects e-commerce environments where customer information, purchase histories, and financial data are stored, making it particularly attractive to threat actors seeking to exploit commercial databases. Organizations using this software version without proper patches or mitigations face significant risk of unauthorized access to their customer databases, potentially resulting in regulatory compliance violations, financial losses, and reputational damage. The attack requires minimal sophistication and can be automated, making it particularly dangerous in environments with limited security monitoring capabilities.
Mitigation strategies for CVE-2016-3694 should prioritize immediate patching of the modified eCommerce Shopsoftware to the latest available version that addresses this specific vulnerability. Organizations should implement input validation and parameter sanitization measures at the application level, ensuring that all user-supplied data is properly escaped before database interaction. The principle of least privilege should be enforced by restricting database access permissions for the application, limiting potential damage from successful exploitation attempts. Network-level protections including web application firewalls and intrusion detection systems can provide additional defense-in-depth measures to detect and block suspicious SQL injection attempts. Regular security assessments and vulnerability scanning should be implemented to identify similar weaknesses in other components of the e-commerce infrastructure. According to ATT&CK framework category T1190, this vulnerability represents a technique commonly used by adversaries to gain unauthorized access to database systems, making it essential for organizations to implement comprehensive database security controls and monitoring mechanisms to prevent exploitation attempts.