CVE-2015-2814 in EMR Unwired
Summary
by MITRE
SAP EMR Unwired (com.sap.mobile.healthcare.emr.v2) and Clinical Task Tracker (com.sap.mobile.healthcare.ctt) does not properly restrict access, which allows remote attackers to change the backendurl, clientid, ssourl, and infopageurl settings via unspecified vectors, aka SAP Security Note 2117079.
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Analysis
by VulDB Data Team • 04/15/2018
The vulnerability identified as CVE-2015-2814 affects SAP Enterprise Mobility Runtime Unwired and Clinical Task Tracker mobile applications that are part of the SAP mobile healthcare ecosystem. This security flaw resides within the authentication and authorization mechanisms of these mobile applications, specifically within the configuration management components that handle backend service connections. The vulnerability stems from inadequate input validation and access control measures that permit unauthorized modification of critical application parameters through remote exploitation vectors. Attackers can manipulate these settings to redirect application traffic to malicious endpoints, potentially compromising the integrity of healthcare data flows and user authentication processes. The affected applications are designed to facilitate mobile healthcare workflows, making this vulnerability particularly concerning for healthcare organizations that rely on secure mobile data transmission.
The technical implementation of this vulnerability involves the absence of proper authorization checks when processing configuration parameters within the mobile applications. Specifically, the backendurl, clientid, ssourl, and infopageurl settings can be modified without appropriate authentication verification, allowing attackers to inject malicious values into these critical configuration fields. This flaw operates at the application layer and can be exploited through network-based attacks that do not require physical access to the device or elevated privileges. The vulnerability allows for arbitrary parameter modification that could redirect application functionality to unauthorized servers, potentially enabling man-in-the-middle attacks, credential harvesting, or data exfiltration. The unspecified attack vectors suggest that the vulnerability may be exploitable through various communication channels including HTTP/HTTPS requests, mobile application APIs, or configuration synchronization mechanisms.
The operational impact of this vulnerability extends significantly within healthcare environments where mobile applications handle sensitive patient data and clinical workflows. Unauthorized modification of backend URLs could result in data being transmitted to compromised servers controlled by attackers, potentially leading to patient privacy violations and regulatory compliance breaches under HIPAA and other healthcare data protection regulations. The clientid parameter modification could enable attackers to impersonate legitimate applications or users, while changes to ssourl could disrupt single sign-on functionality and potentially enable credential theft. The infopageurl modification could facilitate phishing attacks or the delivery of malicious content to healthcare workers. Organizations using these applications face increased risk of data breaches, regulatory penalties, and operational disruption when this vulnerability remains unpatched, particularly given the critical nature of healthcare data and the potential for cascading effects in clinical workflows.
Mitigation strategies for CVE-2015-2814 should focus on immediate patch application from SAP as outlined in SAP Security Note 2117079, which provides specific remediation procedures for affected versions. Network-level controls including firewall rules and application firewalls should be implemented to restrict access to application configuration endpoints and monitor for unauthorized parameter modifications. Organizations should also implement robust mobile device management policies that enforce secure configuration settings and prevent unauthorized application modifications. Input validation controls should be strengthened to ensure that configuration parameters are properly validated before being accepted by the application. The vulnerability aligns with CWE-284 (Improper Access Control) and represents a significant risk in healthcare environments where the confidentiality, integrity, and availability of patient data are paramount. Security monitoring should include detection of unusual configuration changes and unauthorized access attempts to mobile application backend services, following ATT&CK technique T1071.004 (Application Layer Protocol: DNS) for network-based attack detection and prevention strategies.