-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Shang:
(x-posting to full-disclosure as it looks like those guys over
there
are having a bit of a philosophical discussion over this ;))
Hi there. My name is Dario Ciccarone and I work as an Incident
Manager on the Cisco PSIRT - Product Security Incident Response Team.
Your post has certainly caught our attention - indeed, if
running an
nmap scan (no matter which specific command-line options were in use)
against a Cisco device makes it crash, we're certainly interested in
knowing more.
In order to follow-up on this, we would greatly appreciate if
you
could send us:
* a "show tech" from one or more of the affected devices -
specially
if those are different kind of devices (switches, routers, firewalls,
etc)
* if you've been able to collect any crashinfo files - those
would
also come handy
* if you have any console output/syslog messages/traceback
information coming from any of the affected devices
* the specific nmap version you're using
If you could send all of that to ps...@cisco.com (if possible,
encrypted with the PSIRT GPG public key -
http://www.cisco.com/en/US/products/products_security_vulnerability_po
licy.html#roosfassv) we would look right into it.
Much appreciated,
Dario
Dario Ciccarone <dcicc...@cisco.com>
Incident Manager - CCIE #10395
Product Security Incident Response Team (PSIRT)
Cisco Systems, Inc.
PGP Key ID: 0xBA1AE0F0
http://www.cisco.com/go/psirt
This email may contain confidential and privileged material for the
sole use of the intended recipient. Any review, use, distribution or
disclosure by others is strictly prohibited. If you are not the
intended recipient (or authorized to receive for the recipient),
please contact the sender by reply email and delete all copies of
this message.
For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/index.html
> -----Original Message-----
> From: listbou...@securityfocus.com
> [mailto:listbou...@securityfocus.com] On Behalf Of Shang Tsung
> Sent: Wednesday, June 30, 2010 7:04 AM
> To: pen-t...@securityfocus.com
> Subject: Should nmap cause a DoS on cisco routers?
>
> Hello,
>
> Some days ago, I had the task to discover the SNMP version that our
> servers and networking devices use. So I run nmap using the
> following command:
>
> nmap -sU -sV -p 161-162 -iL target_file.txt
>
> This command was supposed to use UDP to probe ports 161 and
> 162, which
> are used for SNMP and SNMP Trap respectively, and return the SNMP
> version.
>
> This "innocent" command caused most networking devices to crash and
> reboot, causing a Denial of Service attack and bringing down the
> network.
>
> Now my question is.. Should this had happened? Can nmap bring
> the whole
> network down from one single machine?
>
> Is this a configuration error of the networking devices?
>
> This is scary...
>
> Shang Tsung
>
>
>
>
>
>
>
>
> --------------------------------------------------------------
> ----------
> This list is sponsored by: Information Assurance
> Certification Review Board
>
> Prove to peers and potential employers without a doubt that
> you can actually do a proper penetration test. IACRB CPT and
> CEPT certs require a full practical examination in order to
> become certified.
>
> http://www.iacertification.org
> --------------------------------------------------------------
> ----------
>
-----BEGIN PGP SIGNATURE-----
Version: PGP 8.1
iQA/AwUBTCzeYYyVGB+6GuDwEQJDLwCfZnGVaFoSfPFaWDm7D3m8PQsmXxQAnjNO
Te6wTi7vHSzhsLMQLSq0uwql
=V0CQ
-----END PGP SIGNATURE-----
_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/
