CVE-2022-3944 in ERP
Summary
by MITRE • 11/11/2022
A vulnerability was found in jerryhanjj ERP. It has been declared as critical. Affected by this vulnerability is the function uploadImages of the file application/controllers/basedata/inventory.php of the component Commodity Management. The manipulation leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-213451.
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Analysis
by VulDB Data Team • 12/17/2022
The vulnerability identified as CVE-2022-3944 represents a critical security flaw within the jerryhanjj ERP system, specifically targeting the Commodity Management component. This issue manifests through the uploadImages function located in the application/controllers/basedata/inventory.php file, where inadequate input validation and access control mechanisms have been implemented. The vulnerability has been classified as unrestricted file upload, which allows malicious actors to bypass normal security restrictions and upload arbitrary files to the server. The critical severity rating indicates the potential for significant system compromise and data breach scenarios.
The technical exploitation of this vulnerability occurs through remote attack vectors, eliminating the need for physical access or local network presence. Attackers can leverage this flaw to upload malicious files such as web shells, malware, or other harmful code that can execute with the privileges of the web application. The unrestricted nature of the upload functionality means that no file type restrictions or content validation measures are properly enforced, allowing attackers to bypass security controls that would normally prevent the upload of dangerous file formats. This vulnerability directly maps to CWE-434, which describes the improper restriction of uploads of executable files, and aligns with ATT&CK technique T1195.002 for the exploitation of web applications through file upload vulnerabilities.
The operational impact of this vulnerability extends beyond simple unauthorized file uploads, as it provides attackers with persistent access to the affected system. Once a malicious file is successfully uploaded, it can be executed to establish command and control channels, exfiltrate sensitive data, or serve as a foothold for further lateral movement within the network. The Commodity Management component typically handles sensitive business data including inventory records, product information, and potentially financial data, making this vulnerability particularly dangerous for enterprise environments. The public disclosure of the exploit, as indicated by the VDB-213451 identifier, increases the risk profile significantly as threat actors can readily implement the attack without requiring specialized knowledge or development time.
Organizations utilizing this ERP system must implement immediate mitigations to address this vulnerability. The most effective approach involves implementing strict file type validation and content inspection mechanisms, ensuring that only approved file formats are accepted for upload operations. Access controls should be strengthened to prevent unauthorized users from accessing upload functionality, while proper input sanitization and output encoding should be implemented throughout the application. The system should also be configured with proper file permissions and upload directories should be restricted from direct web access. Additionally, implementing web application firewalls and intrusion detection systems can help monitor and prevent exploitation attempts, while regular security assessments and penetration testing should be conducted to identify similar vulnerabilities across the application stack.