nginx 'ngx_cpystrn()' Information Disclosure Vulnerability

###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_nginx_52578.nasl 5988 2017-04-20 09:02:29Z teissa $
#
# nginx 'ngx_cpystrn()' Information Disclosure Vulnerability
#
# Authors:
# Michael Meyer <[email protected]>
#
# Copyright:
# Copyright (c) 2012 Greenbone Networks GmbH
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

tag_summary = "nginx is prone to an information-disclosure vulnerability.

Attackers can exploit this issue to harvest sensitive information that
may lead to further attacks.";

tag_solution = "Updates are available. Please see the references for more information.";

if (description)
{
 script_id(103469);
 script_bugtraq_id(52578);
 script_cve_id("CVE-2012-1180");
 script_tag(name:"cvss_base", value:"5.0");
 script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
 script_tag(name:"qod_type", value:"remote_banner_unreliable");
 script_version ("$Revision: 5988 $");

 script_name("nginx 'ngx_cpystrn()' Information Disclosure Vulnerability");

 script_xref(name : "URL" , value : "http://www.securityfocus.com/bid/52578");
 script_xref(name : "URL" , value : "https://bugzilla.redhat.com/show_bug.cgi?id=803856");
 script_xref(name : "URL" , value : "http://seclists.org/bugtraq/2012/Mar/65");
 script_xref(name : "URL" , value : "http://nginx.org/");
 script_xref(name : "URL" , value : "http://trac.nginx.org/nginx/changeset/4530/nginx");

 script_tag(name:"last_modification", value:"$Date: 2017-04-20 11:02:29 +0200 (Thu, 20 Apr 2017) $");
 script_tag(name:"creation_date", value:"2012-04-17 10:03:32 +0200 (Tue, 17 Apr 2012)");
 script_category(ACT_GATHER_INFO);
 script_family("Web Servers");
 script_copyright("This script is Copyright (C) 2012 Greenbone Networks GmbH");
 script_dependencies("nginx_detect.nasl");
 script_require_ports("Services/www", 80);
 script_mandatory_keys("nginx/installed");
 script_tag(name : "solution" , value : tag_solution);
 script_tag(name : "summary" , value : tag_summary);
 exit(0);

}

include("http_func.inc");
include("version_func.inc");
include("global_settings.inc");

port = get_http_port(default:80);
if(!port || !get_port_state(port)) {
  exit(0);
}  

if(!vers = get_kb_item(string("nginx/", port, "/version")))exit(0);
if(!isnull(vers) && vers >!< "unknown") {

  if(vers =~ "1\.1") {
    if(version_is_less(version:vers, test_version:"1.1.17")) {
      security_message(port:port);
      exit(0);
    }  
  }

  if(vers =~ "1\.0") {
    if(version_is_less(version:vers, test_version:"1.0.14")) {
      security_message(port:port);
      exit(0);
    }  
  }  


}