CVE-2024-43160 in BerqWP Plugin
Summary
by MITRE • 08/13/2024
Unrestricted Upload of File with Dangerous Type vulnerability in BerqWP allows Code Injection.This issue affects BerqWP: from n/a through 1.7.6.
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Analysis
by VulDB Data Team • 08/13/2024
The vulnerability identified as CVE-2024-43160 represents a critical security flaw in BerqWP software that enables unauthorized file uploads with potentially malicious content. This issue stems from insufficient validation mechanisms within the application's file upload functionality, allowing attackers to bypass security controls and upload files that could execute arbitrary code on the target system. The vulnerability specifically impacts versions of BerqWP ranging from the initial release through version 1.7.6, indicating a long-standing flaw that has remained unaddressed for an extended period. The unrestricted nature of the file upload capability creates a significant attack surface that can be exploited by malicious actors to compromise the affected systems.
The technical implementation of this vulnerability involves a failure in input validation and file type checking within the BerqWP application's upload handler. When users attempt to upload files through the platform, the system does not adequately verify the file extensions, MIME types, or content signatures to ensure they conform to safe and expected formats. This weakness allows attackers to upload files with dangerous extensions such as .php, .asp, .jsp, or other executable formats that can be directly executed by the web server. The flaw essentially creates a pathway for code injection attacks where malicious payloads can be stored on the server and executed when accessed by legitimate users or system processes. This type of vulnerability is classified under CWE-434, which specifically addresses the issue of unrestricted upload of files with dangerous types, making it a well-documented and severe security concern in web application development.
The operational impact of this vulnerability extends far beyond simple data theft or disruption. An attacker who successfully exploits this weakness can achieve complete system compromise by uploading malicious code that executes with the privileges of the web server process. This typically results in unauthorized access to sensitive data, potential lateral movement within the network, and the establishment of persistent backdoors for future exploitation. The vulnerability can be leveraged to create web shells that allow attackers to maintain access to the compromised system, execute commands remotely, and potentially escalate privileges to gain administrative control over the entire web application infrastructure. The implications are particularly severe for organizations that rely on BerqWP for critical business operations, as the compromise of a single application can lead to widespread security incidents affecting multiple systems and data repositories.
Organizations utilizing BerqWP should immediately implement mitigations to address this vulnerability while awaiting official patches from the vendor. The primary defensive measures include implementing strict file validation mechanisms that enforce whitelisting of acceptable file extensions and MIME types, configuring the web server to prevent execution of uploaded files in web-accessible directories, and implementing proper access controls that restrict upload capabilities to authenticated administrators only. Additional protective measures involve deploying web application firewalls that can detect and block suspicious file upload attempts, conducting regular security audits to identify unauthorized file uploads, and implementing monitoring systems that alert administrators to unusual upload activities. According to ATT&CK framework, this vulnerability maps to T1190 (Exploit Public-Facing Application) and T1059 (Command and Scripting Interpreter) techniques, highlighting the multi-stage attack approach that adversaries can employ when exploiting such weaknesses in web applications. The remediation process should also include comprehensive user education on secure file handling practices and regular security updates to prevent similar vulnerabilities from emerging in the future.