The version of IPSO that I am running 3.6 doesn't do what you are seeing below. So I would suggest upgrading it. Also, if you are able to telnet to the Nokia from the outside that is a bad thing! Since this box is based on a UNIX/Linux variant it could potentially have a few issues with enumeration and or issues with telnet or dictionary attacks. IPSO is a hardened OS and is striped down to a basic level but there are a few things still left on it. There are default accounts on the Nokia they could be guessed. I would turn off telnet access, rename the default accounts, rename fw1adm and enable SSH. SSH just to give a little bit more security and the SSH daemon acts differently on bad user names and passwords. I would also lock down outside access to this the Nokia unless you need to remotely manage it. If you do need to manage it I would at least put your IP's in an allow list and run your tests from different addresses. Hope that helps. -----Original Message----- From: Chris McNab [mailto:chris.mcnabat_private] Sent: Tuesday, January 07, 2003 4:55 PM To: pen-testat_private Subject: Checkpoint FW-1 on Nokia - potential user enumeration bug? Hey, I was performing a pentest recently for a client, and found what seems to be a user enumeration bug within Nokia IPSO (unknown as to which version and patchlevel) running Checkpoint FW-1: pipex-gw>telnet xxx.xxx.xxx.xxx Trying xxx.xxx.xxx.xxx ... Open IPSO (checkpointcharlie) (ttyp0) login: root Password: Login incorrect login: blah Password: Login incorrect login: fw1adm Password: Password: Login incorrect login: fw1adm Password: Password: Login incorrect Login timed out after 300 seconds [Connection to xxx.xxx.xxx.xxx closed by foreign host] pipex-gw> Obviously the fw1adm user exists, being the standard account under FW-1.. but I was wondering if anyone had seen this before, or even if this issue had been addressed by Nokia? Thanks, Chris Chris McNab Technical Director Matta Security Limited 18 Noel Street London W1F 8GN Tel: 08700 77 11 00 This e-mail was sent from Matta Security Limited. The information contained in this message is confidential, may be privileged, and is intended for the addressee(s) only. If you have received this message in error please notify the originator immediately. The unauthorised use, disclosure, copying or alteration of this message is strictly forbidden. Matta Security Limited does not warrant that any attachments are free from viruses or other defects. Matta Security Limited will not be liable for direct, special, indirect or consequential damages arising from alteration of the contents of this message by a third party or as a result of any virus being passed on. ------------------------------------------------------------------------ ---- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service. For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/ ---------------------------------------------------------------------------- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service. For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/
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