CVE-2023-32753 in EDM
Summary
by MITRE • 06/16/2023
OMICARD EDM’s file uploading function does not restrict upload of file with dangerous type. An unauthenticated remote attacker can exploit this vulnerability to upload and run arbitrary executable files to perform arbitrary system commands or disrupt service.
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Analysis
by VulDB Data Team • 01/03/2026
The vulnerability identified as CVE-2023-32753 resides within OMICARD EDM's file upload functionality, representing a critical security flaw that allows unauthenticated remote attackers to execute arbitrary code on affected systems. This issue stems from insufficient input validation and file type restriction mechanisms within the application's upload handler, creating a pathway for malicious actors to bypass security controls and gain unauthorized access to system resources. The vulnerability operates at the application layer and demonstrates a classic lack of proper file validation, which directly violates fundamental security principles for file handling operations.
The technical implementation of this vulnerability involves the absence of proper file type checking and content validation during the upload process. Attackers can exploit this weakness by uploading malicious files with dangerous extensions such as .exe, .bat, .sh, or other executable formats that the system would typically reject. The flaw enables remote code execution through the upload of malicious payloads that can be triggered upon system access or file processing. This represents a direct violation of CWE-434, which addresses the insecure upload of code or files, and aligns with ATT&CK technique T1195.001 for the use of malicious file uploads in initial access phases. The vulnerability essentially allows attackers to establish a persistent foothold within the target environment by executing arbitrary commands on the affected system.
The operational impact of CVE-2023-32753 extends beyond simple unauthorized access to encompass complete system compromise and service disruption. An attacker who successfully exploits this vulnerability can execute arbitrary system commands, potentially leading to data exfiltration, privilege escalation, or deployment of additional malicious tools. The unauthenticated nature of the exploit means that attackers do not require valid credentials to initiate the attack, making it particularly dangerous for publicly accessible systems. This vulnerability can result in service degradation, complete system compromise, and potential lateral movement within network environments. Organizations may experience denial of service conditions, data loss, and unauthorized access to sensitive information, with the attack surface expanding to include all systems that rely on the vulnerable file upload functionality.
Mitigation strategies for CVE-2023-32753 must focus on implementing comprehensive file validation and restriction mechanisms within the application. Organizations should enforce strict file type validation by maintaining allowlists of permitted extensions and content types rather than relying on denylists that can be easily bypassed. The implementation of proper content type checking, file signature verification, and mandatory file extension validation should be enforced at multiple levels including application, network, and system boundaries. Security measures should include deploying web application firewalls that can detect and block suspicious upload attempts, implementing proper access controls to limit upload functionality to authenticated users only, and conducting regular security assessments to identify potential bypass mechanisms. Additionally, organizations should establish automated scanning systems that can detect and prevent the upload of potentially malicious files, while maintaining detailed logging and monitoring of all file upload activities to enable rapid incident response and forensic analysis. The vulnerability requires immediate remediation through code-level fixes that enforce proper input validation and file handling procedures, aligning with industry best practices for secure coding and defense in depth strategies.