CVE-2022-30822 in Wedding Management System
Summary
by MITRE • 06/02/2022
In Wedding Management System v1.0, there is an arbitrary file upload vulnerability in the picture upload point of "users_profile.php" file.
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Analysis
by VulDB Data Team • 06/04/2022
The CVE-2022-30822 vulnerability represents a critical security flaw in the Wedding Management System version 1.0 that allows attackers to execute arbitrary file uploads through the users_profile.php component. This vulnerability falls under the category of insecure file upload functionality, which is a well-documented weakness in web applications that can lead to complete system compromise. The issue stems from insufficient validation and sanitization of file uploads, particularly in the profile picture upload mechanism that is intended for user avatar management. The vulnerability is classified as CWE-434, which specifically addresses the insecure upload of code, where the application accepts files without proper verification of their content or type, creating an avenue for malicious actors to inject harmful code into the system.
The technical exploitation of this vulnerability occurs when an attacker uploads a malicious file through the picture upload functionality in users_profile.php. The system fails to implement proper file type validation, allowing attackers to upload files with extensions that should be restricted such as .php, .asp, .jsp, or other server-side script extensions. The vulnerability exists due to inadequate input sanitization and lack of proper file content inspection, meaning that even if an attacker uploads a file with a restricted extension, the system may still execute the file if it contains malicious code. This flaw can be leveraged to upload web shells, malicious scripts, or other payloads that can be executed within the context of the web server, potentially providing attackers with full control over the affected system. The attack vector is particularly dangerous because it targets a legitimate user functionality, making it more likely to be overlooked by security monitoring systems and less suspicious to users.
The operational impact of this vulnerability extends beyond simple unauthorized file access, as it can lead to complete system compromise and data breaches. An attacker who successfully exploits this vulnerability can establish persistent access to the web application, potentially using the uploaded files to create backdoors, exfiltrate sensitive wedding planning data, or use the system as a launching point for further attacks within the network. The vulnerability affects the confidentiality, integrity, and availability of the system, as it allows unauthorized modifications to the application's functionality and can be used to disrupt services or steal sensitive user information. The impact is particularly severe for a wedding management system which likely contains personal information, financial data, and private communications of users, making the potential for data breaches and privacy violations significant. According to ATT&CK framework, this vulnerability maps to T1059.007 for scripting and T1505.003 for web shell deployment, representing the techniques attackers would use to establish persistent access and maintain control over the compromised system.
Mitigation strategies for CVE-2022-30822 should focus on implementing robust input validation, proper file type restrictions, and content inspection mechanisms. Organizations should enforce strict file extension validation, reject executable file types, and implement proper content-based file verification to ensure uploaded files match their claimed extensions. The system should implement a secure file upload architecture that stores uploaded files outside the web root directory and uses randomized filenames to prevent direct execution. Additionally, the application should implement proper access controls and authentication mechanisms to prevent unauthorized users from accessing the upload functionality. Security headers should be implemented to prevent execution of uploaded files, and regular security testing including penetration testing and code reviews should be conducted to identify and remediate similar vulnerabilities. The remediation process should include updating the Wedding Management System to a patched version or implementing compensating controls such as web application firewalls and enhanced monitoring of file upload activities to detect and prevent exploitation attempts.