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KYOCERA Multi-Set Template Editor 3.4 Out-Of-Band XML External Entity Injection

High
Advisory ID
ZSL-2018-5459
Release Date
07 April 2018
Vendor
KYOCERA Corporation - https://global.kyocera.com
Affected Version
3.4.0906
Tested On
Microsoft Windows 7 Professional SP1 (EN), Apache Tomcat/8.5.15
Summary

KYOCERA Net Admin is Kyocera's unified device management software that uses a web-based platform to give network administrators easy and uncomplicated control to handle a fleet for up to 10,000 devices. Tasks that used to require multiple programs or walking to each printer can now be accomplished in a single, fast and modern environment.

Description

KYOCERA Multi-Set Template Editor (part of Net Admin) 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 input passed to the Multi-Set Template Editor (kmmted.exe) called by the ActiveX DLL MultisetTemplateEditorActiveXComponent.dll is not sanitized while parsing a 5.x Multi-Set template XML file.

Proof of Concept
Disclosure Timeline
28.03.2018Vulnerability discovered.
28.03.2018Vendor contacted.
06.04.2018No response from the vendor.
07.04.2018Public security advisory released.
Credits
Vulnerability discovered by Gjoko Krstic
References
Changelog
07.04.2018Initial release
16.04.2018Added reference [1], [2], [3] and [4]
23.03.2026Added reference [5]