I. VULNERABILITIES ------------------------- 1. Reflected XSS Attack vulnerability in Climatix BACnet/IP communication module from Siemens 2. Unrestricted upload of files II. BACKGROUND ------------------------- BACnet/IP communication modules help to integrate controller types POL6XX of the Climatix family into BACnet networks III. DESCRIPTION ------------------------- 1. XSS,Has been detected Reflected XSS vulnerability http://IPDIRECTION/bgi/dumpfile.dll?")</b><script>alert("hacked");</script> 2. Unrestricted upload of files: http://IPDIRECTION/bgi/filemanager.dll#upload V. BUSINESS IMPACT ------------------------- An attacker can execute arbitrary HTML or script code in a targeted user's browser, that allows the execution of arbitrary HTML/script code to be executed in the context of the victim user's browser allowing Cookie Theft/Session Hijacking, thus enabling full access the box. The box can be compromised due to upload of files and execution. VI. SYSTEMS AFFECTED ------------------------- Climatix BACnet/IP communication module: All versions < V10.34 VII. SOLUTION ------------------------- Siemens provides firmware update Climatix BACnet/IP communication module V10.34 which fixes the vulnerability (XSS). The new firmware update includes further security improvements (e.g. web server authentication enabled by default) due to vulnerabilities founded like uncontrolled upload of files and unrestricted execution of dangerous functions like "shell.exe" and "cmd.exe". Siemens Security Advissory: http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-142512.pdf ICS-CERT: https://ics-cert.us-cert.gov/advisories/ICSA-15-176-01 Detected and reported by J. Francisco Bolivar (es.linkedin.com/in/jfbolivar/) @Jfran_cbit