Ethical Hacking Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package. | Computer Forensics Training at InfoSec Institute Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors. |

| Subject: | Re: Removing ping/icmp from a network |
|---|---|
| Date: | Tue, 25 Mar 2008 17:11:06 -0300 |
Hi all, Please consider the risk of an intruder using ICMP as a Covert Channel (http://en.wikipedia.org/wiki/Covert_channel). Should one configure corporate routers to inspect and to rewrite ICMP packets to avoid / reduce this risk ? Regards, Fabio. On Tue, Mar 25, 2008 at 3:12 PM, Mark Owen <mr.markowen@gmail.com> wrote: On Tue, Mar 25, 2008 at 12:56 PM, Hopke, Greg <GHopke@libertymgt.com> wrote:
Is ICMP on a LAN insecure? I could see lowing it through a firewall or from trusted to non-trusted. Greg
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: ISSMP Certificate, Ali, Saqib |
|---|---|
| Next by Date: | Re: Protecting Client Identity, Sheldon Malm |
| Previous by Thread: | Re: Removing ping/icmp from a network, Mark Owen |
| Next by Thread: | RE: Removing ping/icmp from a network, Ramsdell, Scott |
| Indexes: | [Date] [Thread] [Top] [All Lists] |