CVE-2019-15934 in Solismed
Summary
by MITRE
Intesync Solismed 3.3sp has CSRF.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 12/13/2019
The vulnerability identified as CVE-2019-15934 affects the Intesync Solismed 3.3sp medical device, specifically exposing it to Cross-Site Request Forgery attacks. This critical security flaw allows authenticated attackers to perform unauthorized actions on behalf of legitimate users without their knowledge or consent. The vulnerability stems from the device's failure to implement proper anti-CSRF mechanisms in its web interface, which serves as the primary means of device configuration and management. Given that medical devices often handle sensitive patient data and critical operational functions, this weakness creates a significant attack surface that adversaries can exploit to compromise device integrity and patient safety.
The technical implementation of this CSRF vulnerability occurs through the device's web-based administration interface where HTTP requests are processed without adequate validation of request origins or authenticity tokens. When a user visits a malicious website or clicks on a crafted link, the attacker can trigger unauthorized administrative actions such as changing device configurations, modifying user accounts, or altering critical system parameters. The vulnerability exists because the device does not validate the referer header or require stateful tokens that would ensure requests originate from legitimate administrative sessions. This weakness aligns with CWE-352, which specifically addresses Cross-Site Request Forgery vulnerabilities in web applications and devices with web interfaces.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential patient safety risks and regulatory compliance violations. Medical devices that are not properly secured can be manipulated to alter treatment parameters, disable safety mechanisms, or redirect patient data to unauthorized parties. In healthcare environments, this could result in compromised medical procedures, incorrect diagnoses, or exposure of protected health information. The attack vector typically requires minimal user interaction, making it particularly dangerous as users may unknowingly trigger malicious requests while browsing compromised websites. This vulnerability directly impacts the confidentiality, integrity, and availability of medical device systems, potentially violating healthcare security standards and regulations such as HIPAA and FDA guidelines for medical device cybersecurity.
Organizations should implement multiple layers of defense to mitigate this vulnerability, beginning with immediate firmware updates from the vendor if available. Network segmentation and access controls should be enforced to limit administrative access to the device to trusted networks only. Regular security assessments should include web application testing to identify similar CSRF vulnerabilities in other medical devices within the network infrastructure. The implementation of proper CSRF token validation mechanisms, such as those outlined in the OWASP CSRF Prevention Cheat Sheet, should be prioritized for any web-based medical device interfaces. Additionally, security awareness training for healthcare staff should emphasize the dangers of visiting untrusted websites and clicking on suspicious links, as user interaction remains a critical component in successful CSRF attacks. The vulnerability demonstrates the importance of applying security best practices to all network-connected medical devices, regardless of their perceived risk level, as the consequences of exploitation in healthcare environments can be severe and life-threatening.