Full Disclosure mailing list archives
RE: blocking Google Desktop
From: "Sims, Brian (MED US)" <brian.sims () siemens com>
Date: Fri, 10 Feb 2006 15:49:08 -0500
Upon launching, Google Desktop made several HTTPS connections to both www.google.com and desktopservices.google.com. It used IE's proxy settings - we have an ISA cache/proxy that does integrated auth. If it handled NTLM auth, I'm sure it can do basic proxy auth as well. However, blocking it on the network-level doesn't do a whole lot of good for corporations with a large mobile population. They connect elsewhere (home, client site, hotel, etc.), and your proprietary data is still making it to Google. However, note that the current version is GPO-aware, although there does not appear to be a setting in the template to disable the "Share Across Computers" functionality. This may just be because the template hasn't been updated since the feature was added or the corresponding registry key published yet. However, there are settings for preventing the indexing of file types altogether. Enable for every file type, and should pretty much render it non-functional. -----Original Message----- From: full-disclosure-bounces () lists grok org uk [mailto:full-disclosure-bounces () lists grok org uk] On Behalf Of J. Patterson Wicks Sent: Friday, February 10, 2006 3:06 PM To: full-disclosure () lists grok org uk Subject: RE: [Full-disclosure] blocking Google Desktop According to several sources on Google, (http://www.sharp-ideas.net/hacking_google_desktop_search.php , http://www.oreillynet.com/pub/a/network/2004/10/14/google_desktop.html )the Google Desktop application operates on TCP port 4664. When it communicates to the outside Google web servers, does it use the same port or go over port 80 to avoid firewall rules? The application is banned in our environment, but you never know. -----Original Message----- From: full-disclosure-bounces () lists grok org uk [mailto:full-disclosure-bounces () lists grok org uk] On Behalf Of Michael Holstein Sent: Friday, February 10, 2006 2:37 PM To: full-disclosure () lists grok org uk Subject: Re: [Full-disclosure] blocking Google Desktop
I would also venture to say that they should be publicizing information for corporations to be able to block this wholesale (google desktop and gmail chat), since we all know there are financial institutions where people work, and think nothing of saving customer data onto laptops.
Agreed. I'm actually working on testing it now, to figure out how to write snort sigs to (detect) and/or (block) it -- assuming I can't just blackhole *desktop.google.com on DNS. I might just block their ads as well (/pagead/iclk? in URLs) out of spite for them doing this stupid trick with their desktop product. FWIW, we're sending out notices that this is NOT to be installed on any University-owned PC, violators get their machine re-imaged. Cheers, Michael Holstein CISSP GCIA Cleveland State University _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/ This e-mail is property of Oxygen Media, LLC. It is intended only for the person or entity to which it is addressed and may contain information that is privileged, confidential, or otherwise protected from disclosure. Distribution or copying of this e-mail or the information contained herein by anyone other than the intended recipient is prohibited. If you have received this e-mail in error, please immediately notify us by sending an e-mail to postmaster () oxygen com and destroy all electronic and paper copies of this e-mail. _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/ ------------------------------------------------------------------------------- This message and any included attachments are from Siemens Medical Solutions USA, Inc. and are intended only for the addressee(s). The information contained herein may include trade secrets or privileged or otherwise confidential information. Unauthorized review, forwarding, printing, copying, distributing, or using such information is strictly prohibited and may be unlawful. If you received this message in error, or have reason to believe you are not authorized to receive it, please promptly delete this message and notify the sender by e-mail with a copy to Central.SecurityOffice () shs siemens com Thank you _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Re: blocking Google Desktop, (continued)
- Re: blocking Google Desktop sekure (Feb 14)
- Re: blocking Google Desktop Michael Holstein (Feb 14)
- Re: blocking Google Desktop sekure (Feb 14)
- RE: Some one needs their coffee. WAS: blocking Google Desktop Randall M (Feb 11)
- Re: blocking Google Desktop gboyce (Feb 11)
- Re: blocking Google Desktop Nick FitzGerald (Feb 11)
- Re: blocking Google Desktop gboyce (Feb 11)
- Re: blocking Google Desktop Michael Holstein (Feb 10)
- Re: blocking Google Desktop Jason Mayer (Feb 10)