Date: Wed, 18 May 2005 14:12:02 GMT From: elmer radi radisson <fbsd@aesthetic.eu.org> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/81202: nmap scan causes box to get immediately rebooted. Message-ID: <200505181412.j4IEC2kn044507@www.freebsd.org> Resent-Message-ID: <200505181420.j4IEK2Bu010371@freefall.freebsd.org>
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>Number: 81202
>Category: misc
>Synopsis: nmap scan causes box to get immediately rebooted.
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed May 18 14:20:02 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator: elmer radi radisson
>Release: 5.4 STABLE
>Organization:
klosz art company
>Environment:
FreeBSD lotos.mcnet.pl 5.4-STABLE FreeBSD 5.4-STABLE #0: Mon May 16 16:37:31 CEST 2005 root@lotos.mcnet.pl:/usr/src/sys/i386/compile/RAVEN-X205 i386
Machine is IBM X220, P3 866Mhz+256MB RAM, Intel NIC (FXP), 3WARE ATA RAID 8000 Series
>Description:
both using machine installed out of the box (CD Install) or after upgrading kernel/system using cvsup, being exposed under nmap scan causes it to get rebooted. Besides of this, machine seems to be very stable and all compilation/upgrade process with cvsup'ed source code went ok. Only exposure under nmap scan causes immediate reboot. So to summarize - this problem repeats with both generic kernel and compiled one (using well crafted config file). I've got CD install images from ftp2.freebsd.org and installation process went also ok. I wouldn't report it to public FreeBSD related discussion list due to the fact that I perceive this as possible trivial method to cause remote DOS (/paranoia off) especially if problem possibly has a reported wider range and this is not unique and my-box-only related.
>How-To-Repeat:
perform nmap (no matter if it is vanilla tcp scan or with any additional flags) on target freebsd 5.4 box.
>Fix:
n/a
>Release-Note:
>Audit-Trail:
>Unformatted:
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