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Old 4th July 2010
J65nko J65nko is offline
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Join Date: May 2008
Location: Budel - the Netherlands
Posts: 4,128
Default Please scan softly - your router could crash

From http://www.h-online.com/security/new...h-1032725.html

Quote:
An nmap scan with certain parameters is apparently sufficient to temporarily cripple a whole corporate network. On the Full Disclosure mailing list, a network admin reported that he used the following command to establish the SNMP versions of his routers and servers:

nmap -sU -sV -p 161-162 -iL target_file.txt

where target_file.txt contained his systems' IP addresses. However, the scan caused most of his network devices to crash and reboot, including several Cisco routers. There were very varied responses to his question on the list whether this problem was caused by a DoS vulnerability within the devices or by a flawed configuration.
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Last edited by J65nko; 6th July 2010 at 07:17 PM. Reason: typo ;)
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