SEC Consult Vulnerability Lab Security Advisory < publishing date 20160422-1 > ======================================================================= title: Multiple vulnerabilities in Digitalstrom Konfigurator product: Digitalstrom Konfigurator vulnerable version: 1.10.0 fixed version: 1.10.4 CVE number: - impact: High homepage: http://www.digitalstrom.com/ found: 2015-10-01 by: W. Schober (Office Vienna) SEC Consult Vulnerability Lab An integrated part of SEC Consult Berlin - Frankfurt/Main - Montreal - Singapore Vienna (HQ) - Vilnius - Zurich https://www.sec-consult.com ======================================================================= Vendor description: ------------------- "Digitalstrom is designed to systematically network all the electrical devices in your home. The control of light ambiances, security technology and household devices is just the start. You can simply download these new functions to your Digitalstrom server; they will install themselves automatically. And tomorrow has already become today." Source: http://www.digitalstrom.com/en/idea/Good-morning/ Business recommendation: ------------------------ SEC Consult recommends every user to sign out immediately after configuring the Digitalstrom installation in the Digitalstrom Konfigurator. This should prevent cross-site request forgery attacks. Furthermore every user should be aware that an attack could occure everytime when he clicks on an unknown link. However, SEC Consult recommends the vendor to conduct a comprehensive security analysis, based on security source code reviews, in order to identify all available vulnerabilities in the Digitalstrom Konfigurator and increase the security of its customers. Vulnerability overview/description: ----------------------------------- 1) Multiple Persistent Cross-Site Scripting Digitalstrom Konfigurator suffers from multiple cross-site scripting vulnerabilities, which allow stealing session tokens and impersonation of other users in order to gain unauthorized access to the web interface. Furthermore it is possible to alter the contents of the interface in the context of the current user. 2) Cross-Site Request Forgery Digitalstrom Konfigurator doesn't implement any kind of cross-site request forgery protection. Due to that, attackers are able to execute arbitrary requests with the privileges of any user. The only requirement is, that a victim visits a malicious webpage. For example, an administrator can be forced to execute unwanted actions. Some of these actions are: -) Change network configuration -) Enable SSH service -) Turn various devices on and off Proof of concept: ----------------- Has been removed due to the request from the vendor. Vulnerable / tested versions: ----------------------------- Digitalstrom Konfigurator 1.10.0 Vendor contact timeline: ------------------------ 2015-11-09: Transmission of advisory via email 2015-12-02: As requested by Digitalstrom: New PoC for XSS 2016-01-31: Vendor released updated version 1.10.4 2016-04-22: Public advisory release Solution: --------- Upgrade to version 1.10.4. The effectiveness of the vendor's update was not verified by the SEC Consult Vulnerability Lab. Workaround: ----------- no workaround available Advisory URL: ------------- https://www.sec-consult.com/en/Vulnerability-Lab/Advisories.htm ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SEC Consult Vulnerability Lab SEC Consult Berlin - Frankfurt/Main - Montreal - Singapore - Vienna (HQ) - Vilnius - Zurich About SEC Consult Vulnerability Lab The SEC Consult Vulnerability Lab is an integrated part of SEC Consult. It ensures the continued knowledge gain of SEC Consult in the field of network and application security to stay ahead of the attacker. The SEC Consult Vulnerability Lab supports high-quality penetration testing and the evaluation of new offensive and defensive technologies for our customers. Hence our customers obtain the most current information about vulnerabilities and valid recommendation about the risk profile of new technologies. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Interested to work with the experts of SEC Consult? Send us your application https://www.sec-consult.com/en/Career.htm Interested in improving your cyber security with the experts of SEC Consult? Contact our local offices https://www.sec-consult.com/en/About/Contact.htm ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Mail: research at sec-consult dot com Web: https://www.sec-consult.com Blog: http://blog.sec-consult.com Twitter: https://twitter.com/sec_consult EOF W. Schober / @2015