CVE-2026-41880 in DMS
Summary
by MITRE • 07/10/2026
R-SOFT DMS is vulnerable to OS Command Injection in the Optical Character Recognition (OCR) module. Multiple command execution functions accept user-controllable file paths without proper sanitization before passing them to the system shell via SSH. In current infrastructure the URL encoding neutralizes the injection during the standard web upload flow. An authenticated attacker who is able to trigger the OCR functionality for the uploaded file can execute OS commands within the context of a root user.
This issue was fixed in version v3.19-2862 and v3.17-2580.
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Analysis
by VulDB Data Team • 07/10/2026
The R-SOFT DMS vulnerability represents a critical operating system command injection flaw within its optical character recognition module that demonstrates poor input validation and sanitization practices in security-critical components. This vulnerability resides in the OCR processing functionality where user-controllable file paths are directly passed to system shell commands without adequate sanitization measures, creating an avenue for malicious command execution through SSH connections. The flaw specifically affects authentication contexts where attackers can trigger OCR processing on uploaded files, effectively bypassing standard web application security controls that typically prevent direct command injection during normal upload operations.
The technical implementation of this vulnerability stems from improper handling of user-supplied input within the OCR module's file path processing functions. When an authenticated user uploads a file and subsequently triggers the OCR functionality, the system fails to validate or sanitize the file path parameters before executing shell commands through SSH connections. This design flaw aligns with CWE-78 which specifically addresses OS Command Injection vulnerabilities arising from insufficient input sanitization in command execution contexts. The vulnerability's exploitation requires authentication privileges but does not require elevated privileges beyond what the authenticated user already possesses, making it particularly dangerous in environments where legitimate users have access to file upload and processing capabilities.
The operational impact of this vulnerability is severe as it allows authenticated attackers to execute arbitrary operating system commands with root-level privileges, effectively providing complete system compromise. The fact that URL encoding neutralizes injection during standard web upload flows creates a false sense of security while the vulnerability remains active in the OCR processing context, demonstrating the complexity of modern application security concerns where different attack vectors may have varying degrees of protection. This scenario exemplifies ATT&CK technique T1059.003 which covers command and scripting interpreter for execution through legitimate system interfaces.
Security mitigations for this vulnerability require comprehensive input validation and sanitization practices throughout the OCR module's file path handling processes, including proper escaping of shell metacharacters and implementation of strict parameter validation. The fix implemented in versions v3.19-2862 and v3.17-2580 demonstrates proper remediation through input sanitization and command execution parameterization that prevents the direct injection of malicious commands into system shell processes. Organizations should implement additional security controls including network segmentation, privilege separation, and monitoring for unusual command execution patterns to further reduce the risk of exploitation in environments where such vulnerabilities may still exist.
The vulnerability highlights critical gaps in secure coding practices particularly within file processing modules that handle user-supplied data through system interfaces. It underscores the importance of defending against command injection attacks at multiple layers including web application security controls, input validation mechanisms, and proper privilege separation between different system components. This case study serves as a reminder that even seemingly benign functionality like OCR processing can become a critical attack surface when proper security controls are not implemented throughout the entire application lifecycle.