Penetration Testing mailing list archives
Re: Exhange 2003
From: jamesworld () intelligencia com
Date: Tue, 02 Mar 2004 20:16:45 -0600
Did you try netstat -an And see what ports were listening?Is there a local IP filtering policy active? You mentioned only 2 ports as being active 25 and 100. Perhaps there is a local IP policy only allowing those ports. Perhaps the port 100 was supposed to be port 110 for POP3 mail access and they typod the entry. Good of you to find their misconfiguration for them :-)
Did you run fport (foundstone)? If you've never used fport, you should add it to your arsenal.
Hopefully HADXM is the username that you are using. If not, look into the host being compromised.
If you have more, post it to us. Cheers, -James At 08:29 03/02/2004, Deniz CEVIK wrote:
Hi All, While we are testing our customer network, we faced with strange problem. We are testing exchange 2003 server externally. When we controlled open services with port scan, I saw that only two ports (25 and 100) are shown as open. Before I run the portscan, I have controlled the server with "nbtstat" command of windows. It returned error messages as below. nbtstat -A EXCH_IP Local Area Connection: Node IpAddress: [MY_MACHINE] Scope Id: [] Host not found. After the port scan is finished, in order to see the banner information of mail server, I opened the connection to port 25 using telnet command (telnet EXCH_IP 25). Same time when I run "nbtstat -A" command from another window by mistake and I saw that below output. nbtstat -A EXCH_IP Local Area Connection: Node IpAddress: [MY_MACHINE] Scope Id: [] NetBIOS Remote Machine Name Table Name Type Status --------------------------------------------- HADXM <1F> UNIQUE Registered HADXM <00> UNIQUE Registered HADXM <20> UNIQUE Registered EXCHANGE <00> GROUP Registered EXCHANGE <1C> GROUP Registered EXCHANGE <1B> UNIQUE Registered EXCHANGE <1E> GROUP Registered HADXM <03> UNIQUE Registered ADMINISTRATOR <03> UNIQUE Registered EXCHANGE <1D> UNIQUE Registered ..__MSBROWSE__. <01> GROUP Registered HADXM <6A> UNIQUE Registered HADXM <87> UNIQUE Registered MAC Address = MAC_ADDRESS_OF_EXCHANGE If there isn't any connection to open port of the server you can't see this nbtstat outputs. Has any body faced with same situations before? BR --------------------------------------------------------------------------- Free 30-day trial: firewall with virus/spam protection, URL filtering, VPN, wireless securityProtect your network against hackers, viruses, spam and other risks with AstaroSecurity Linux, the comprehensive security solution that combines six applications in one software solution for ease of use and lower total cost of ownership. Download your free trial at http://www.securityfocus.com/sponsor/Astaro_pen-test_040201 ----------------------------------------------------------------------------
--------------------------------------------------------------------------- Free 30-day trial: firewall with virus/spam protection, URL filtering, VPN, wireless security Protect your network against hackers, viruses, spam and other risks with Astaro Security Linux, the comprehensive security solution that combines six applications in one software solution for ease of use and lower total cost of ownership.Download your free trial at http://www.securityfocus.com/sponsor/Astaro_pen-test_040201
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Current thread:
- Exhange 2003 Deniz CEVIK (Mar 02)
- Re: Exhange 2003 jamesworld (Mar 03)
- RE: Exhange 2003 Deniz CEVIK (Mar 03)
- RE: Exhange 2003 John Swope (Mar 04)
- RE: Exhange 2003 joey (Mar 05)
- Re[2]: Exhange 2003 Marius Huse Jacobsen (Mar 15)
- RE: Exhange 2003 Deniz CEVIK (Mar 03)
- Re: Exhange 2003 jamesworld (Mar 03)
- <Possible follow-ups>
- RE: Exhange 2003 Meidinger Chris (Mar 03)
- RE: Exhange 2003 Zach Forsyth (Mar 05)
- RE: Exhange 2003 Bowden, Sean (Mar 07)
- RE: Exhange 2003 Blurred Vision (Mar 08)