CVE-2024-1263 in JPShop
Summary
by MITRE • 02/07/2024
A vulnerability, which was classified as critical, was found in Juanpao JPShop up to 1.5.02. Affected is the function actionUpdate of the file /api/controllers/merchant/shop/PosterController.php of the component API. The manipulation of the argument pic_url leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-253002 is the identifier assigned to this vulnerability.
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Analysis
by VulDB Data Team • 03/01/2024
This critical vulnerability exists in the Juanpao JPShop application version 1.5.02 and earlier, specifically within the PosterController.php file located at /api/controllers/merchant/shop/. The flaw resides in the actionUpdate function where the pic_url parameter is processed without adequate validation or sanitization, creating an unrestricted file upload vulnerability that allows attackers to bypass normal security controls. The vulnerability is remotely exploitable, meaning malicious actors can leverage it without requiring physical access to the system, making it particularly dangerous for web applications that are publicly accessible.
The technical implementation of this vulnerability stems from insufficient input validation within the API endpoint, where the pic_url argument is directly processed without proper checks against file types, sizes, or content. This allows an attacker to upload malicious files such as web shells or other executable code that can be executed within the application's context. The unrestricted upload capability enables arbitrary code execution, which represents a severe compromise of the system's integrity and can lead to complete system takeover. According to CWE-434, this vulnerability maps directly to unrestricted file upload issues that permit attackers to upload and execute malicious files, while the ATT&CK framework categorizes this as a file upload technique under the T1195 category for content injection.
The operational impact of this vulnerability is substantial, as it provides attackers with the capability to execute arbitrary code on the affected server, potentially leading to data breaches, system compromise, and unauthorized access to sensitive information. Remote exploitation means that attackers can target the vulnerability from anywhere on the internet without needing local system access, significantly expanding the attack surface. The disclosure of the exploit publicly increases the likelihood of successful attacks, as threat actors can immediately implement the known vulnerability without requiring additional reconnaissance. This type of vulnerability typically allows for privilege escalation, persistent access, and can serve as a foothold for further attacks within the network infrastructure.
Organizations should implement immediate mitigations including input validation and sanitization of all file upload parameters, restricting file types to only allow safe formats, implementing proper file name sanitization, and deploying web application firewalls to detect and block malicious upload attempts. The application should enforce strict file type checking and size limitations, while also implementing proper access controls and authentication mechanisms to limit who can upload files. Additionally, regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other components of the application stack. The vulnerability highlights the importance of secure coding practices and the need for comprehensive input validation, particularly for API endpoints that handle file operations, as outlined in OWASP Top Ten security requirements for web application security.