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NovaRad NovaPACS Diagnostics Viewer v8.5 OOB XXE File Disclosure

High
Advisory ID
ZSL-2018-5488
Release Date
05 September 2018
Vendor
NovaRad Corporation - http://www.novarad.net
Affected Version
8.5.19.75 (Diagnostics Viewer, Study Browser)
Tested On
Microsoft Windows 7 Professional SP1 (EN)
Summary

NovaPACS revolutionary workflow infrastructure has been designed and developed using the expertise of radiology directors, technicians, PACS administrators for over 20 years. This wealth of imaging experience has lead to over 850 installations in more than 15 countries as well as key partnerships throughout the imaging industry. Built as a completely scalable solution, NovaPACS can be used in imaging centers, or in a hospital environment as a part of a complete enterprise imaging strategy. Our feature-rich PACS system is entirely customizable. This allows optimization of each user’s profile based on their unique needs and demands which, improves both speed and efficiency. The NovaPACS user interface can display reports, priors and patient histories right alongside the most current study.

Description

NovaPACS suffers from an unauthenticated XML External Entity (XXE) injection vulnerability using the DTD parameter entities technique resulting in disclosure and retrieval of arbitrary data from the affected node via out-of-band (OOB) channel attack. The vulnerability is triggered when importing XML format preferences within the settings submenu.

Proof of Concept
Disclosure Timeline
28.08.2018Vulnerability discovered.
28.08.2018Vendor contacted.
02.09.2018No response from the vendor.
03.09.2018Vendor contacted.
04.09.2018No response from the vendor.
05.09.2018Public security advisory released.
Credits
Vulnerability discovered by Gjoko Krstic
References
Changelog
05.09.2018Initial release
07.09.2018Added reference [1], [2], [3] and [4]
23.03.2026Added reference [5]