CVE-2018-19276 Scanner
CVE-2018-19276 Scanner - Deserialization of Untrusted Data vulnerability in OpenMRS
Short Info
Level
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
24 days
Scan only one
Domain, Subdomain, IPv4
Toolbox
-
OpenMRS is an open-source platform used for electronic medical record systems, aimed at providing healthcare systems in the developing world with high-quality clinical and public health informatics technology. Developed and maintained by the OpenMRS community, it is widely used by hospitals and clinics for managing medical records, data, and patient workflows. With its modular architecture, OpenMRS supports a range of add-ons for extended functionality, making it adaptable to diverse healthcare needs. The platform is built primarily on Java technology, allowing for scalability and integration with other systems. Its flexibility and customizability make it an essential tool in resource-constrained environments seeking to improve patient care. The software is continually improved by a global community of developers, implementers, and volunteers.
The vulnerability present in OpenMRS involves insecure object deserialization, a critical flaw that can be exploited to execute arbitrary commands on the targeted system. Deserialization of untrusted data can potentially lead to a wide array of security breaches, including remote code execution. This vulnerability mainly arises due to improper validation of incoming data in specific endpoints that use XML formatted payloads. Malicious actors can craft requests that lead to execution of unauthorized commands, posing a severe threat to the system. The critical nature of this vulnerability underscores the importance of ensuring secure deserialization practices in applications. OpenMRS versions before 2.24.0 are susceptible to this issue, necessitating immediate attention and patching.
The technical core of this vulnerability lies in the deserialization of crafted XML payloads sent to specific endpoints in OpenMRS systems. By embedding malicious objects within a seemingly benign XML structure, attackers can exploit the deserialization process to execute commands. In OpenMRS, this manifests in endpoints that process XML data without thorough validation, allowing for arbitrary code execution. The vulnerable parameter in the payload facilitates the invocation of harmful actions on the server. The exploit involves manipulating groovy classes like MethodClosure within the XML to alter the processing flow. Such manipulations can lead to unauthorized operations, dependent on the crafted command structure within the XML.
When exploited, this vulnerability could result in the execution of arbitrary commands under the application's context, potentially compromising system integrity and confidentiality. Attackers can gain access to sensitive medical records, manipulate or delete critical healthcare data, and disrupt service availability. The impact of this can range from data breaches to full system takeover, affecting patient safety and clinic operations. Unauthorized command execution may also serve as a pivot, allowing attackers to infiltrate deeper into a healthcare organization's network. This breach can lead to significant reputational damage, legal implications, and financial losses for healthcare providers relying on vulnerable versions of OpenMRS.
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