18
Cisco port tcp/7161 carriage return Denial of Service
Network devices
2003/11/13
Marc Ruef
marc dot ruef at computec dot ch
http://www.computec.ch
computec.ch
Marc Ruef
marc dot ruef at computec dot ch
http://www.computec.ch
computec.ch
2004/11/13
1.3
Corrected the plugin structure and added the accuracy values in 1.3.
tcp
7161
open|sleep|send \n|sleep 5|close|open|sleep 10|close|icmp_alive
open|sleep|send \n|sleep 5|close|open|sleep 10|close|icmp_alive
30
30
This plugin can cause a denial of service against the vulnerable target. Use the check with cause.
Cisco Systems
info at cisco dot com
http://www.cisco.com
Cisco routers
Denial Of Service
According to ID CSCdi74333 it is possible to crash a Cisco device connecting to port tcp/7161 and sending a carriage return.
Filter incoming traffic on port tcp/7161 and upgrade your Cisco firmware.
30 minutes
Yes
http://www.securityfocus.com/bid/705/exploit/
Yes
No
High
6
7
8
7
High
Nessus is able to do the same check.
CVE-1999-0430
705
10046
Hacking Exposed: Network Security Secrets & Solutions, Stuart McClure, Joel Scambray and George Kurtz, February 25, 2003, 4th Edition, McGraw-Hill Osborne Media, ISBN 0072227427
http://www.computec.ch
