Penetration Testing mailing list archives
RE: TELNET and SMTP
From: "Thomas W Shinder" <tshinder () tacteam net>
Date: Sat, 7 Jul 2007 18:41:12 -0500
An unprotected port? You need to be very careful because "port attackers" and do awful things to ports. That's why we do "port scans" to look for "ports" we can take advantage of. That's why we have "hardware" firewalls, because they allow us to "open" and "close" "ports". Let the software guyz worry about any services might be located behind those "ports" -- remember the "hardware" firewalls will protect our "ports"! NOT. Thomas W Shinder, M.D. Site: www.isaserver.org Blog: http://blogs.isaserver.org/shinder/ Book: http://tinyurl.com/3xqb7 MVP -- Microsoft Firewalls (ISA)
-----Original Message----- From: listbounce () securityfocus com [mailto:listbounce () securityfocus com] On Behalf Of wymerzp () sbu edu Sent: Saturday, July 07, 2007 7:31 AM To: pen-test () securityfocus com Subject: TELNET and SMTP Hello all, I'm looking at a client's site and they have unprotected access to port 25 (i.e. I can telnet to it and issue commands). When I attempt to send an email I get this message '553 Relaying is not supported'. My question is two-fold: 1)What could I do with the unprotected SMTP access if I can't send mail. 2)What purpose do you believe that the SMTP service provides? Does the SMTP simply recieve!?!? Thank you all, Zach -------------------------------------------------------------- ---------- This List Sponsored by: Cenzic Swap Out your SPI or Watchfire app sec solution for Cenzic's robust, accurate risk assessment and management solution FREE - limited Time Offer http://www.cenzic.com/wf-spi -------------------------------------------------------------- ----------
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Current thread:
- TELNET and SMTP wymerzp (Jul 07)
- RE: TELNET and SMTP Shenk, Jerry A (Jul 07)
- Re: TELNET and SMTP StaticRez (Jul 07)
- Re: TELNET and SMTP Marco Ivaldi (Jul 09)
- Re: TELNET and SMTP Hans-J. Ullrich (Jul 07)
- Re: TELNET and SMTP rajat swarup (Jul 07)
- RE: TELNET and SMTP Richard Lane (Jul 08)
- Re: TELNET and SMTP A. Tom McFrog (Jul 08)
- Re: TELNET and SMTP AdamT (Jul 08)
- <Possible follow-ups>
- RE: TELNET and SMTP Thomas W Shinder (Jul 07)
- RE: TELNET and SMTP Levenglick, Jeff (Jul 09)
- RE: TELNET and SMTP Russell Butturini (Jul 09)
- RE: TELNET and SMTP Levenglick, Jeff (Jul 09)
- Re: TELNET and SMTP Levenglick, Jeff (Jul 08)