sshd killed due to dos attack

ravindra Chavalam ravindra1103 at gmail.com
Wed Jan 27 17:51:34 EST 2010


Hi,

I am not sure to report this as a bug. so mailing to the list.


I have sshd(openssh3.5p1) server running on my router and when i run tcpjunk
to that port, sshd gets killed after some time

192.168.71.1 is my sshd server and 192.168.71.4 is my client from where i
send my dos attack

This is the tcpjunk command i gave to the ssh server

#tcpjunk -s 192.168.71.1 -p 22 -c req -i 100
req session file contains string <fuzz any 101>

below attached is the netstat output. They are lot of these like these but i
just pasted two lines for reference

#netstat -an|grep ":22"
tcp 0 0 192.168.71.1:22 192.168.71.4:37757 TIME_WAIT
tcp 0 0 192.168.71.1:22 192.168.71.4:55207 TIME_WAIT
...
...

...

...


Can any one on tell me where in the openssh code i have to search to find
out the root cause for this issue


Thanks a lot in advance


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