CVE-2016-3109 in Shopware
Summary
by MITRE
The backend/Login/load/ script in Shopware before 5.1.5 allows remote attackers to execute arbitrary code.
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Analysis
by VulDB Data Team • 12/02/2022
The vulnerability identified as CVE-2016-3109 represents a critical remote code execution flaw within the Shopware e-commerce platform affecting versions prior to 5.1.5. This vulnerability resides in the backend/Login/load/ script which serves as a critical entry point for authentication and system initialization processes. The flaw enables remote attackers to inject and execute arbitrary code on affected systems, potentially leading to complete system compromise and unauthorized access to sensitive data. The vulnerability demonstrates a classic path traversal and code injection weakness that has significant implications for online retail environments where Shopware is deployed.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization within the login script's backend processing. Attackers can exploit this weakness by crafting malicious payloads that bypass authentication mechanisms and gain direct access to the server's execution environment. This flaw aligns with CWE-94, which describes the improper execution of code due to insufficient validation of untrusted data. The vulnerability specifically targets the application's handling of user-supplied parameters during the login process, allowing attackers to manipulate the script's behavior through crafted input that gets executed as part of the normal processing flow. The attack vector operates over standard network protocols, making it particularly dangerous as it requires no special privileges or physical access to the target system.
The operational impact of this vulnerability extends far beyond simple unauthorized access, as it provides attackers with complete control over affected Shopware installations. Successful exploitation can result in data breaches, system compromise, and potential lateral movement within network environments where these systems reside. Organizations running vulnerable Shopware versions face significant risks including customer data theft, financial fraud, and regulatory compliance violations. The vulnerability's remote nature means that attackers can exploit it from anywhere on the internet, making it particularly attractive for automated attacks and large-scale compromise operations. This weakness directly impacts the integrity and availability of e-commerce platforms, potentially disrupting business operations and damaging organizational reputation.
Organizations should immediately implement multiple layers of defense to protect against exploitation of this vulnerability. The primary mitigation strategy involves upgrading to Shopware version 5.1.5 or later, which includes proper input validation and sanitization measures that address the root cause of the vulnerability. Additionally, network-level protections such as web application firewalls and intrusion detection systems should be configured to monitor for suspicious patterns in login requests and unusual code execution attempts. Security teams should also implement strict access controls, including limiting administrative access to trusted networks and implementing multi-factor authentication. The remediation process should include thorough security auditing of all backend scripts and authentication mechanisms to identify potential similar vulnerabilities. This vulnerability demonstrates the importance of maintaining current security patches and implementing comprehensive security monitoring to detect and prevent exploitation attempts. Organizations should also consider implementing the principle of least privilege for all system components and regularly review their security configurations to minimize potential attack surface areas. The remediation approach aligns with ATT&CK techniques related to privilege escalation and defense evasion, requiring organizations to implement both preventive and detective controls to effectively mitigate the risk.