Nmap Development mailing list archives

Re: Malicious web server can make nmap consume all RAM memory.


From: David Fifield <david () bamsoftware com>
Date: Wed, 8 Apr 2015 08:08:17 -0700

On Wed, Apr 08, 2015 at 01:06:16PM +0200, el draco wrote:
* Second experiment
nmap -sS -A -n -v -d -p 8800 localhost

Now nmap is using -A, and the nse scripts get stuck in the honeypot.
Maybe the nse engine is vulnerable. The vulnerable http requests were:

GET /flumemaster.jsp (flume-master-info)
GET /rs-status
GET /
GET /jobtracker.jsp
GET /master.jsp
OPTIONS /
GET /tasktracker.jsp
GET /browseDirectory.jsp
GET /status.jsp
GET /dfshealth.jsp
GET /robots.txt

These requests are done by some nse scripts, they were connected for
2:09 minutes and downloaded 105MB each. Which actually killed the
machine running nmap because it filled its 4GB ram in 2 minutes. I had
to manually stop nmap in order to recover the machine.

Thanks for your message. Please see this recent thread on the same
topic:

http://seclists.org/nmap-dev/2015/q2/6

David Fifield
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