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[FW-1] [fw-1] Instant Messenger bypass FW-1
- To: [email protected]
- Subject: [FW-1] [fw-1] Instant Messenger bypass FW-1
- From: "A, Kaustubh" <[email protected]>
- Date: Wed, 12 Jun 2002 18:34:30 +0530
- Reply-to: Mailing list for discussion of Firewall-1 <[email protected]>
- Sender: Mailing list for discussion of Firewall-1 <[email protected]>
- Thread-index: AcISEbA85qA8S6NGT/meETAz9C3e7A==
- Thread-topic: [fw-1] Instant Messenger bypass FW-1
Folks,
I came to know about an article of Gartner saying that their are some IM bypassing Firewall by scanning open ports.
Has anybody tested this CP FW-1 NG? I am afraid if this is a problem with FW-1!!!
Firewall Bypass Technology
AOL's Instant Messenger has a uniquely slippery client that is
designed to bypass firewall port blocking technology, making the
product easy to configure from behind a firewall. For example, the
AOL client will use any available port, scanning even those reserved
for domain naming system (DNS) lookup. This technology enables
unsophisticated users to sneak past a firewall with relative ease,
effectively establishing breaches in the corporate firewall.
Kaustubh A.
Technical Consultant
HP Services
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Vile Parle (East) Mumbai 400099.
*+91 (0) 22.616.7331 *GSM:*: [email protected]
URL: http://www.ho.com/in
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