PT-2013-89: XML External Entities Resolution vulnerability in KingSCADA Vulnerable softwareKingSCADA Version: 31.1.0.46 and possibly other Link: http://www.wellintech.com/index.php/kingscadasideSeverity levelSeverity level: Medium Impact: Internal Network Resources and File System Access, Denial of Service Access Vector: Remote CVSS v2: Base Score: 5.8 Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:P)CVE: not assignedSoftware descriptionKingSCADA is an Interactive Graphical SCADA System. It is a state of the art SCADA system for monitoring and controlling industrial processes.Vulnerability descriptionThe specialists of the Positive Research center have detected an XML External Entities Resolution vulnerability in KingSCADA.The vulnerability is possible due to unsafe parsing of XML external entities. If an attacker manages to make a victim open a project that contains specially crafted XML, KingSCADA will automatically send the contents of local or remote resource to the attacker's server. It also makes possible to conduct denial of service attacks.How to fixUpdate your software up to the latest versionAdvisory status 14.03.2013 - Vendor gets vulnerability details 27.03.2014 - Vendor releases fixed version and details 13.05.2014 - Public disclosureCreditsThe vulnerability was detected by Timur Yunusov, Alexey Osipov and Ilya Karpov, Positive Research Center (Positive Technologies Company)Referenceshttp://en.securitylab.ru/lab/PT-2013-89 Reports on the vulnerabilities previously discovered by Positive Research:http://www.ptsecurity.com/research/advisory/ http://en.securitylab.ru/lab/