CVE-2018-17180 in OpenEMR
Summary
by MITRE
An issue was discovered in OpenEMR before 5.0.1 Patch 7. Directory Traversal exists via docid=../ to /portal/lib/download_template.php.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 09/21/2023
The vulnerability identified as CVE-2018-17180 represents a critical directory traversal flaw within the OpenEMR medical records management system prior to version 5.0.1 Patch 7. This issue resides in the portal component of the application where the download_template.php script fails to properly validate user input parameters. The vulnerability specifically manifests when the docid parameter is manipulated to include directory traversal sequences such as ../ which allows attackers to navigate outside the intended directory structure and access unauthorized files on the server filesystem.
This directory traversal vulnerability falls under the Common Weakness Enumeration category CWE-22, which classifies improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal. The flaw enables an attacker to manipulate the docid parameter in the URL to access files that should remain protected within the application's designated directories. The impact extends beyond simple information disclosure as it can potentially allow attackers to retrieve sensitive configuration files, database credentials, or other critical system files that could compromise the entire medical records infrastructure.
The operational impact of this vulnerability is significant for healthcare organizations relying on OpenEMR systems, as it provides unauthorized access to potentially sensitive patient data and system configuration information. Attackers could leverage this vulnerability to download templates, scripts, or other application files that might contain hardcoded credentials, database connection strings, or other sensitive information. The vulnerability is particularly dangerous in healthcare environments where patient privacy is paramount and compliance with regulations such as HIPAA requires strict control over data access and protection mechanisms.
From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1083 (File and Directory Discovery) and T1078 (Valid Accounts) as attackers could use the traversal capability to discover system files and potentially escalate privileges through the exposure of sensitive configuration data. The attack vector is relatively simple to exploit, requiring only a web browser and knowledge of the vulnerable endpoint, making it a high-risk vulnerability that could be exploited by both skilled and less experienced threat actors. Organizations should implement immediate mitigations including upgrading to the patched version 5.0.1 Patch 7, implementing input validation controls, and applying proper access controls to prevent unauthorized file access through the portal component.