Penetration Testing mailing list archives
Re: Port scan causing system crashes
From: "MARTIN M. Bénoni" <benoni_martin () hotmail com>
Date: Thu, 12 Jun 2003 15:23:10 +0000
Hi!Well, I have such problems last year as well, on old Sun boxes. The Sun were very loaded with many requests from clients, and the portscan we did made them crash down. However we were running Nmap with the option allowing us to initiate many connetions to many ports at the same time, and this has the same result than a port scan Dos.
Maybe the heavy load the boxes were supporting, and our mutiple scans added to that made the box to fall down.
From: steve.x.jones () royalmail com To: pen-test () securityfocus com Subject: Port scan causing system crashes Date: Thu, 12 Jun 2003 11:23:06 +0000 HelloPlease can you help? Has any-one else out there had issues with NMAP port scans(or any other port scanner) causing systems to crash?I use Nessus to baseline the security of our systems and have twice had problemscaused by the NMAP port scan on clustered unix boxes running our enterpriseapplications. NOTE - it was the initial port scan that caused the problems, notthe subsequent vulnerability assessment.I've done a quick Google search and found confirmation for one of the systems - BUGTRAQ Vulnerability 3358, "IBM HACMP Port Scan Denial of Service Vulnerability",the other was a bespoke app running on some HP UX boxes. Does any-one know of other systems that fall over with a simple port scan?Up til now I've been running port scans happily across our subnets to look forrogue FTP, SMTP, HTTP etc, obviously I'll have to take more care now... Thanks in advance for any help. SteveThis email and any attachments are confidential and intended for the addressee only. If you are not the named recipient, you must not use, disclose, reproduce, copy or distribute the contents of this communication. If you have received this in error, please contact the sender and then delete this email from your system.--------------------------------------------------------------------------- ----------------------------------------------------------------------------
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Current thread:
- Port scan causing system crashes steve . x . jones (Jun 12)
- Re: Port scan causing system crashes Helmut Springer (Jun 12)
- Re: Port scan causing system crashes Anthony Kim (Jun 12)
- Re: Port scan causing system crashes Adam Carter (Jun 13)
- <Possible follow-ups>
- RE: Port scan causing system crashes OBrien, Brennan (Jun 12)
- Re: Port scan causing system crashes MARTIN M. Bénoni (Jun 12)
- RE: Port scan causing system crashes Whiteside, Larry [contractor] (Jun 12)
- Re: Port scan causing system crashes Clem Skorupka (Jun 12)
- Re: Port scan causing system crashes Renaud Deraison (Jun 12)
- Re: Port scan causing system crashes Clem Skorupka (Jun 12)
- Re: Port scan causing system crashes Clem Skorupka (Jun 12)
- RE: Port scan causing system crashes Steve Goldsby (ICS) (Jun 12)
- Re: Port scan causing system crashes Death Star (Jun 12)
- RE: Port scan causing system crashes Brass, Phil (ISS Atlanta) (Jun 12)
- Re: Port scan causing system crashes Kevin Pietersma (Jun 13)
- FW: Port scan causing system crashes Brewis, Mark (Jun 13)
- RE: Port scan causing system crashes Martin Walker (Jun 16)