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#
# This script was written by Renaud Deraison <deraison@nessus.com>
#
# See the Nessus Scripts License for details
#
if(description)
{
script_id(10590);
script_cve_id("CAN-2000-0938");
name["english"] = "SWAT allows the obtention of user names by brute force";
name["francais"] = "SWAT allows the obtention of user names by brute force";
script_name(english:name["english"], francais:name["francais"]);
desc["english"] = "
The remote SWAT server replies with different error codes when
it is issued a bad user name or a bad password.
An attacker may use this flaw to obtain the list of
user names of the remote host by a brute force attack.
As SWAT does not log login attempts, an attacker may use
this flaw even more effectively
Solution : get the latest version of samba, or disable swat
Risk factor : Low";
script_description(english:desc["english"]);
summary["english"] = "Detect SWAT server port";
script_summary(english:summary["english"]);
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2000 Renaud Deraison");
family["english"] = "General";
script_family(english:family["english"]);
script_dependencie("find_service.nes");
script_require_ports("Services/swat", 901);
exit(0);
}
#
# The script code starts here
#
port = get_kb_item("Services/swat");
if(!port)port = 901;
if (get_port_state(port))
{
soctcp901 = open_sock_tcp(port);
if (soctcp901)
{
sendata = http_get(item:"/", port:port);
sendata = sendata - string("\r\n\r\n");
#
# First attempt - we try to log in as nobodyhome123/a
#
sendata = sendata + string("\r\nAuthorization: Basic bm9zdWNodXNlcjEyMzQ6bm9wYXNz\r\n\r\n");
send(socket:soctcp901, data:sendata);
code1 = recv_line(socket:soctcp901, length:8196);
close(soctcp901);
soctcp901 = open_sock_tcp(port);
sendata = http_get(item:"/", port:port);
sendata = sendata - string("\r\n\r\n");
#
# First attempt - we try to log in as nobodyhome123/a
#
sendata = sendata + string("\r\nAuthorization: Basic cm9vdDpub3Bhc3MK\r\n\r\n");
send(socket:soctcp901, data:sendata);
code2 = recv_line(socket:soctcp901, length:8196);
close(soctcp901);
if(("401" >< code1) &&
("401" >< code2))
{
if(code1 != code2)security_warning(port);
}
}
}
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